Endoscopic Therapy for Barrett's Esophagus

Download Endoscopic Therapy for Barrett's Esophagus PDF Online Free

Author :
Publisher : Springer Science & Business Media
ISBN 13 : 1603274456
Total Pages : 193 pages
Book Rating : 4.6/5 (32 download)

DOWNLOAD NOW!


Book Synopsis Endoscopic Therapy for Barrett's Esophagus by : Richard E. Sampliner

Download or read book Endoscopic Therapy for Barrett's Esophagus written by Richard E. Sampliner and published by Springer Science & Business Media. This book was released on 2009-12-01 with total page 193 pages. Available in PDF, EPUB and Kindle. Book excerpt: Endoscopic Therapy is emerging as the preferred therapy for early neoplasia in Barrett’s Esophagus. This volume provides the key decision making factors in determining endoscopic therapy for an individual patient. All current techniques and complications of ET are provided including, photodynamic therapy (PDT), APC, multipolar electrocoagulation (MPEC), RF, ER, and cryotherapy. Each technique includes “how to highlights”, high quality color endoscopic images, line drawings and diagrams. Endoscopic imaging modalities to detect dysplasia, decision making in the clinical arena and cost-effectiveness of ablation are some of the additional topics discussed in this highly practical volume. Written by experts in the field of endoscopic therapy, this text educates GI practitioners and researchers about this under-utilized approach to the treatment of Barrett’s Esophagus.

Advances in Barrett’s Esophagus, An Issue of Gastrointestinal Endoscopy Clinics, E-Book

Download Advances in Barrett’s Esophagus, An Issue of Gastrointestinal Endoscopy Clinics, E-Book PDF Online Free

Author :
Publisher : Elsevier Health Sciences
ISBN 13 : 0323798322
Total Pages : 257 pages
Book Rating : 4.3/5 (237 download)

DOWNLOAD NOW!


Book Synopsis Advances in Barrett’s Esophagus, An Issue of Gastrointestinal Endoscopy Clinics, E-Book by : Sachin Wani

Download or read book Advances in Barrett’s Esophagus, An Issue of Gastrointestinal Endoscopy Clinics, E-Book written by Sachin Wani and published by Elsevier Health Sciences. This book was released on 2020-12-01 with total page 257 pages. Available in PDF, EPUB and Kindle. Book excerpt: In collaboration with Consulting Editor, Dr. Charles J. Lightdale, Guest Editor Dr. Sachin Wani has put together a state-of-the art issue that presents the latest advances in Barrett’s Esophagus. He has secured expert authors who have contributed clinical reviews on the following topics: The epidemiology of Barrett’s esophagus and esophageal adenocarcinoma – implications for screening and surveillance; Endoscopic screening for Barrett’s esophagus and esophageal adenocarcinoma: rationale, candidates and challenges; Progress in screening for Barrett’s esophagus: beyond standard upper endoscopy; Best practices in surveillance for Barrett’s esophagus; Pathologic assessment of Barrett’s esophagus and Barrett’s related neoplasia: Do we need quality indicators; Cost effectiveness of screening, surveillance and endoscopic eradication therapies in Barrett’s esophagus and early esophageal cancer; Advanced imaging and sampling in Barrett’s esophagus: Artificial intelligence to the rescue; Advances in biomarkers for risk stratification in Barrett’s esophagus; Current status of chemoprevention in Barrett’s esophagus; Optimizing outcomes with radiofrequency frequency ablation of Barrett’s esophagus: candidates, efficacy and durability; Updates in cryotherapy for Barrett’s esophagus; Role of endoscopic mucosal resection and endoscopic submucosal dissection in the management of Barrett’s related neoplasia; Practical approach to refractory and recurrent Barrett’s esophagus; Surgical management of Barrett’s related neoplasia; and Measuring Quality in Barrett’s esophagus: Time to embrace quality indicators. Endoscopists will come away with the information they need to screen, diagnose, and treat patients with Barrett’s Esophagus.

Barrett’s Esophagus

Download Barrett’s Esophagus PDF Online Free

Author :
Publisher : Academic Press
ISBN 13 : 0128026499
Total Pages : 234 pages
Book Rating : 4.1/5 (28 download)

DOWNLOAD NOW!


Book Synopsis Barrett’s Esophagus by : Douglas Pleskow

Download or read book Barrett’s Esophagus written by Douglas Pleskow and published by Academic Press. This book was released on 2016-03-28 with total page 234 pages. Available in PDF, EPUB and Kindle. Book excerpt: Barrett’s Esophagus: Emerging Evidence for Improved Clinical Practice is a comprehensive reference on the treatment and new imaging modalities of Barrett’s Esophagus for researchers, clinicians, and scholars. Each chapter is composed from the perspective of investigators who summarize the data as well as the reasoning behind why those studies were conceived. In addition, the future directions of research are discussed within each chapter, providing insights from the investigators. Research questions are described, and cutting-edge applications are explained. Each chapter contains clinical scenarios to highlight the directions in which the research is, and should be, heading. Provides a perspective into the research behind Barrett’s Esophagus Emphasizes the emerging technologies in surveillance and treatment of Barrett’s Features clinical scenarios to highlight the directions in which research is, and should be, heading Includes coverage of current guidelines and discussions on where these guidelines fall short

The Esophagus

Download The Esophagus PDF Online Free

Author :
Publisher : John Wiley & Sons
ISBN 13 : 1119599601
Total Pages : 73 pages
Book Rating : 4.1/5 (195 download)

DOWNLOAD NOW!


Book Synopsis The Esophagus by : Joel E. Richter

Download or read book The Esophagus written by Joel E. Richter and published by John Wiley & Sons. This book was released on 2021-07-13 with total page 73 pages. Available in PDF, EPUB and Kindle. Book excerpt: THE ESOPHAGUS The Esophagus investigates the anatomy, physiology, and pathology of the esophagus. This sixth edition, revised and updated throughout, also explores the diagnosis and treatment of various esophageal conditions. It includes treatment guidelines approved by the two largest gastroenterology societies, the ACG and AGA, as befits a work co-edited by two former presidents of those organizations. Advancements in diagnostics are presented, as are developments in the surgical and drug therapies. Presented in full colour, and boasting an unrivalled team of editors and contributing authors, The Esophagus Sixth Edition will find a home wherever the anatomy, physiology, and pathology of the esophagus are studied and taught. This book is accompanied by a website containing all the figures from the book in PowerPoint format. www.wiley.com/go/richter/esophagus6e Praise for the Fifth Edition: “There is absolutely no doubt that this edition of the textbook will maintain its status as the go-to reference for esophageal conditions, and will remain a highly utilized and clinically useful resource for novice and experienced physicians and surgeons alike.” (Gastroenterology, 1 July 2013)

Barrett's Esophagus and Esophageal Adenocarcinoma

Download Barrett's Esophagus and Esophageal Adenocarcinoma PDF Online Free

Author :
Publisher : John Wiley & Sons
ISBN 13 : 1405171537
Total Pages : 312 pages
Book Rating : 4.4/5 (51 download)

DOWNLOAD NOW!


Book Synopsis Barrett's Esophagus and Esophageal Adenocarcinoma by : Prateek Sharma

Download or read book Barrett's Esophagus and Esophageal Adenocarcinoma written by Prateek Sharma and published by John Wiley & Sons. This book was released on 2008-04-15 with total page 312 pages. Available in PDF, EPUB and Kindle. Book excerpt: The leading reference text entirely devoted to this increasinglysignificant condition This text is dedicated to Barrett’s esophagus and providesrecent evidence and current approaches to patient management. Ithas been completely revised, updated and extended to include thelatest research findings and describes how these affect day-to-dayclinical practice. It includes seven new chapters and even more color images thanthe last edition. Each chapter, written by the leadinginternational experts in the field, provides clear, didacticguidance on diagnosis, treatment and management of thiscondition. Barrett’s Espohagus gives an extensive overviewcovering epidemiology, screening, pathology, gastroenterology andsurgery. It looks at the precursor lesions leading to thedevelopment of Barrett’s epithelium, the uniquecharacteristics of Barrett’s esophagus, and the consequencesof malignant degeneration. All aspects of diagnosis, secondaryprevention, multimodality, and medical and surgical treatment areclearly explained. This is a complete guide on the latest thinking on diagnosis andtreatment of Barrett’s esophagus which can be referred toover and over again.

New Directions in Barrett's Esophagus, An Issue of Gastrointestinal Endoscopy Clinics E-Book

Download New Directions in Barrett's Esophagus, An Issue of Gastrointestinal Endoscopy Clinics E-Book PDF Online Free

Author :
Publisher : Elsevier Health Sciences
ISBN 13 : 0323531334
Total Pages : pages
Book Rating : 4.3/5 (235 download)

DOWNLOAD NOW!


Book Synopsis New Directions in Barrett's Esophagus, An Issue of Gastrointestinal Endoscopy Clinics E-Book by : Nicholas J. Shaheen

Download or read book New Directions in Barrett's Esophagus, An Issue of Gastrointestinal Endoscopy Clinics E-Book written by Nicholas J. Shaheen and published by Elsevier Health Sciences. This book was released on 2017-06-09 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Dr. Shaheen's issue of Gastrointestinal Endoscopy Clinics of North America addresses the current thinking and clinical decision making surrounding endoscopy for Barrett's Esophagus. Expert authors have contributed articles on the following topics: The Troublesome Epidemiology of Barrett’s Esophagus and Esophageal Adenocarcinoma; Who Deserves Endoscopic Screening for Esophageal Neoplasia; Alternatives to Traditional per oral Endoscopy for Screening; Effectiveness and Cost-Effectiveness of Endoscopic Screening and Surveillance; The Role of Adjunct Imaging in Endoscopic Detection of Dysplasia; Beyond Dysplasia Grade: The Role of Biomarkers in Stratifying Risk; Management of Nodular Neoplasia in Barrett’s Esophagus: Endoscopic Mucosal Resection and Endoscopic Submucosal Dissection; EUS and Management of Superficial Esophageal Neoplasia; Radiofrequency Ablation of Barrett’s Esophagus: Patient Selection, Preparation, and Performance; Radiofrequency Ablation of Barrett’s Esophagus: Efficacy, Complications, and Durability; Cryotherapy of Barrett’s Esophagus; Care of the Post-Ablation Patient: Surveillance, Acid Suppression and Treatment of Recurrence; and Surgical Management of Superficial Esophageal Neoplasia. Readers will come away with the knowledge to diagnose and treat neoplasia and Barrett's Esophagus using the latest techniques.

Revisiting Barrett's Esophagus

Download Revisiting Barrett's Esophagus PDF Online Free

Author :
Publisher : Springer
ISBN 13 : 3319920936
Total Pages : 207 pages
Book Rating : 4.3/5 (199 download)

DOWNLOAD NOW!


Book Synopsis Revisiting Barrett's Esophagus by : Giuseppe Galloro

Download or read book Revisiting Barrett's Esophagus written by Giuseppe Galloro and published by Springer. This book was released on 2018-11-03 with total page 207 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book focuses on Barrett’s Esophagus (BE), a clinical condition that must be evaluated in all patients affected by chronic GERD, and with an important link to esophageal cancer. Divided into four sections (morphological background, epidemiology and natural history, diagnosis, and treatments), this handy volume provides the latest indications regarding endoscopic approaches (first level and advanced endoscopy), pathological studies (pathology and molecular biology), and state-of-the-art therapeutic options (medical, endoscopic, and surgical) for BE. As such, it offers a valuable reference guide for all professionals involved in the management of BE (gastroenterologists, endoscopists, pathologists and surgeons), offering them a comprehensive overview and deeper understanding of this seemingly superficial disease.

Foregut Surgery

Download Foregut Surgery PDF Online Free

Author :
Publisher : Springer Nature
ISBN 13 : 3030275922
Total Pages : 317 pages
Book Rating : 4.0/5 (32 download)

DOWNLOAD NOW!


Book Synopsis Foregut Surgery by : Marco G. Patti

Download or read book Foregut Surgery written by Marco G. Patti and published by Springer Nature. This book was released on 2019-11-22 with total page 317 pages. Available in PDF, EPUB and Kindle. Book excerpt: ​This book provides a state-of-the-art description of the clinical evaluation, diagnosis, management, and treatment of achalasia, gastroesophageal reflux disease, paraesophageal hernia, and morbid obesity. The prevalence of such diseases is increasing worldwide due to higher awareness and improved diagnosis rate. The text is divided in three different parts, each covering detailed surgical techniques of the main foregut operations: achalasia, gastroesophageal reflux disease (GERD), and obesity. Written by experts in the field, chapters focus on the preoperative work-up, indications, and technical aspects of each operation. Foregut Surgery proves to be an irreplaceable resource for surgeons, gastroenterologists, medical students, and surgical residents that care for patients with reflux, achalasia, and morbid obesity.

Barrett's Esophagus, An issue of Gastroenterology Clinics of North America,

Download Barrett's Esophagus, An issue of Gastroenterology Clinics of North America, PDF Online Free

Author :
Publisher : Elsevier Health Sciences
ISBN 13 : 0323388892
Total Pages : 321 pages
Book Rating : 4.3/5 (233 download)

DOWNLOAD NOW!


Book Synopsis Barrett's Esophagus, An issue of Gastroenterology Clinics of North America, by : Prasad G. Iyer

Download or read book Barrett's Esophagus, An issue of Gastroenterology Clinics of North America, written by Prasad G. Iyer and published by Elsevier Health Sciences. This book was released on 2015-06-25 with total page 321 pages. Available in PDF, EPUB and Kindle. Book excerpt: A thorough update is presented by the Guest Editors on the diagnosis, treatment, and management of Barrett’s Esophagus. Not only do they address the most pertinent clinical issues like screening, biomarkers, surveillance, therapeutics, and predictors of disease progression but they present state of the art material on therapeutic/treatment modalities like EMR, ESD, and ablative therapy. Further, articles are presented on epidemiology, molecular pathogensis, and cost-analysis studies so that the reader will come away with a comprehensive update on Barrett’s Esophagus.

Advances in the Diagnosis and Management of Barrett's Esophagus, an Issue of Gastrointestinal Endoscopy Clinics

Download Advances in the Diagnosis and Management of Barrett's Esophagus, an Issue of Gastrointestinal Endoscopy Clinics PDF Online Free

Author :
Publisher : Saunders
ISBN 13 : 9781455704521
Total Pages : 0 pages
Book Rating : 4.7/5 (45 download)

DOWNLOAD NOW!


Book Synopsis Advances in the Diagnosis and Management of Barrett's Esophagus, an Issue of Gastrointestinal Endoscopy Clinics by : Irving Waxman

Download or read book Advances in the Diagnosis and Management of Barrett's Esophagus, an Issue of Gastrointestinal Endoscopy Clinics written by Irving Waxman and published by Saunders. This book was released on 2010-12 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Dr. Waxman has assembled global experts to provide comprehensive coverage of Barrett's Esophagus, including diagnosis, management, treatment, and beyond. Articles are devoted to photodynamic therapy, minimally invasive surgery, advanced imaging, endoscopic mucosal resection, cryotherapy, and radiofrequency ablation. The clinical information in these articles will give readers a true picture of the advances in this disease state as well as what the clinical picture will look like in the near future.

Interventional and Therapeutic Gastrointestinal Endoscopy

Download Interventional and Therapeutic Gastrointestinal Endoscopy PDF Online Free

Author :
Publisher : Karger Medical and Scientific Publishers
ISBN 13 : 3805593082
Total Pages : 559 pages
Book Rating : 4.8/5 (55 download)

DOWNLOAD NOW!


Book Synopsis Interventional and Therapeutic Gastrointestinal Endoscopy by : Klaus Mönkemüller

Download or read book Interventional and Therapeutic Gastrointestinal Endoscopy written by Klaus Mönkemüller and published by Karger Medical and Scientific Publishers. This book was released on 2010 with total page 559 pages. Available in PDF, EPUB and Kindle. Book excerpt: The aim of this book is to present a concise yet instructive overview of the most common interventional and therapeutic gastrointestinal endoscopic procedures. Although there exists a large amount of literature dealing with therapeutic endoscopy, this publication stands out for several reasons: To begin with, it has been written by a highly selected group of international experts who contribute their own tried and tested tips and tricks. The various techniques are described in a homogeneous fashion, making it easy for the endoscopist to single out the important aspects for his or her own practice. Moreover, the data presented follows evidence-based guidelines, but does not inundate the reader with confusing facts and numbers. Finally, the book is illustrated like an atlas, featuring real-life pictures enhanced by explanatory drawings and algorithms. This textbook is directed at residents, fellows, gastroenterologists and surgeons interested in therapeutic endoscopy. As the majority of the procedures described are classics that have stood the test of time, it will be a useful companion for many years to come.

Esophageal Cancer and Barrett's Esophagus

Download Esophageal Cancer and Barrett's Esophagus PDF Online Free

Author :
Publisher : John Wiley & Sons
ISBN 13 : 1118655192
Total Pages : 304 pages
Book Rating : 4.1/5 (186 download)

DOWNLOAD NOW!


Book Synopsis Esophageal Cancer and Barrett's Esophagus by : Prateek Sharma

Download or read book Esophageal Cancer and Barrett's Esophagus written by Prateek Sharma and published by John Wiley & Sons. This book was released on 2015-08-25 with total page 304 pages. Available in PDF, EPUB and Kindle. Book excerpt: Esophageal Cancer and Barrett’s Esophagus, 3E, focuses on these two common and key conditions that affect the esophagus, providing expert guidance to their pathogenesis, cause, prevention, diagnosis and clinical management. Top international names in the field examine each of the many issues involved, using the very latest evidence-based research, and clear, didactic advice allows the reader to understand the best methods of diagnosis and clinical management of each condition – whether early or late stage. Well-illustrated and fully revised to include the latest in ACG/ASG/UEGW guidelines, it is the perfect consultation tool for gastroenterologists and oncologists managing patients with cancer of the esophagus. It is also ideal for teaching residents and fellows optimum patient management, and for identifying areas requiring future research.

Multidisciplinary Management of Gastroesophageal Reflux Disease

Download Multidisciplinary Management of Gastroesophageal Reflux Disease PDF Online Free

Author :
Publisher : Springer Nature
ISBN 13 : 303053751X
Total Pages : 217 pages
Book Rating : 4.0/5 (35 download)

DOWNLOAD NOW!


Book Synopsis Multidisciplinary Management of Gastroesophageal Reflux Disease by : Sebastian F. Schoppmann

Download or read book Multidisciplinary Management of Gastroesophageal Reflux Disease written by Sebastian F. Schoppmann and published by Springer Nature. This book was released on 2020-09-19 with total page 217 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents a new, multi- and interdisciplinary approach to gastroesophageal reflux disease (GERD) and Barrett’s esophagus that reflects the latest advances in understanding of the disease. The role of each of the available diagnostic techniques, including endoscopy, histopathology, esophageal manometry, reflux monitoring, and EndoFLIP assessment, is carefully explained. The use of endoscopy for the purposes of mucosal ablation (radiofrequency ablation, cryoablation) and mucosal resection is described, and all aspects of anti-reflux surgery are covered, with detailed explanation of indications and techniques for standard fundoplication, endoscopic fundoplication, and surgical procedures using the LINX system and the EndoStim device. To assist the reader further, a novel interdisciplinary algorithm is presented for GERD diagnosis and treatment. In addition, the latest diagnostic and therapeutic approaches (including endoscopic and surgical resection and chemoradiation) are also presented for esophageal cancer and cancer palliation. A key feature of the book is its recognition of the contribution of different specialties in the management of GERD, and it will accordingly appeal to a wide range of practitioners.

Barrett's Esophagus

Download Barrett's Esophagus PDF Online Free

Author :
Publisher : Academic Press
ISBN 13 : 9780128025116
Total Pages : 0 pages
Book Rating : 4.0/5 (251 download)

DOWNLOAD NOW!


Book Synopsis Barrett's Esophagus by : Douglas Pleskow

Download or read book Barrett's Esophagus written by Douglas Pleskow and published by Academic Press. This book was released on 2016-03-29 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Barrett's Esophagus: Emerging Evidence for Improved Clinical Practice is a comprehensive reference on the treatment and new imaging modalities of Barrett's Esophagus for researchers, clinicians, and scholars. Each chapter is composed from the perspective of investigators who summarize the data as well as the reasoning behind why those studies were conceived. In addition, the future directions of research are discussed within each chapter, providing insights from the investigators. Research questions are described, and cutting-edge applications are explained. Each chapter contains clinical scenarios to highlight the directions in which the research is, and should be, heading.

Endoscopic Oncology

Download Endoscopic Oncology PDF Online Free

Author :
Publisher : Springer Science & Business Media
ISBN 13 : 159745172X
Total Pages : 375 pages
Book Rating : 4.5/5 (974 download)

DOWNLOAD NOW!


Book Synopsis Endoscopic Oncology by : Douglas O. Faigel

Download or read book Endoscopic Oncology written by Douglas O. Faigel and published by Springer Science & Business Media. This book was released on 2007-11-06 with total page 375 pages. Available in PDF, EPUB and Kindle. Book excerpt: Table 1 Cancer is the second most common cause of death in Americans (see www.cdc.gov). Colorectal cancer kills more Incidence and Mortality of the Five Most Common Gastrointestinal Malignancies Americans than any other malignancy except for lung cancer. The incidences and mortalities of the major gastrointestinal a a Site Incidence Mortality (GI) malignancies are shown in Table 1. Taken as a group, the five most common GI malignancies account for more cancers Colorectum 53.9 21.6 and more cancer deaths than for any other site. Pancreas 11.1 10.6 Stomach 9.1 4.9 Flexible endoscopy has given physicians unprecedented Liver/intrahepatic bile ducts 6.2 4.4 access to the GI tract. The ability to endoscopically visu- Esophagus 4.5 4.3 alize, biopsy, and apply therapy has had implications for the management of all the major GI malignancies. Accepted Data from SEER database 1992–2002 (www.seer.cancer.gov). applications of endoscopy range from detection of mal- a Per 100,000.

Endoluminal Therapy for Esophageal Disease

Download Endoluminal Therapy for Esophageal Disease PDF Online Free

Author :
Publisher : Saunders
ISBN 13 : 9781437719123
Total Pages : 167 pages
Book Rating : 4.7/5 (191 download)

DOWNLOAD NOW!


Book Synopsis Endoluminal Therapy for Esophageal Disease by : Herbert C. Wolfsen

Download or read book Endoluminal Therapy for Esophageal Disease written by Herbert C. Wolfsen and published by Saunders. This book was released on 2010-01-06 with total page 167 pages. Available in PDF, EPUB and Kindle. Book excerpt: Dr. Wolfsen presents information in this issue about endoluminal techniques that have been developed for removing Barrett's esophagus. Emphasis is on circumferential balloon-based radiofrequency ablation, ALA and porfimer sodium photodynamic therapy (PDT), endoscopic mucosal resection, submucosal dissection, and liquid nitrogen and carbon dioxide cryotherapy. Dr. Wolfsen's assembled authors also provide insight into advances in esophageal surgery, NOTES, and advances in the use of stents. The reader will find that the whole issue addresses the goal of moving closer to ideal endoscopic treatment modalities for the safe, effective, reproducible, stable, and durable treatment for Barrett's disease in order to prevent the development of dysplasia or carcinoma.

Upper Endoscopy for GI Fellows

Download Upper Endoscopy for GI Fellows PDF Online Free

Author :
Publisher : Springer
ISBN 13 : 3319490419
Total Pages : 182 pages
Book Rating : 4.3/5 (194 download)

DOWNLOAD NOW!


Book Synopsis Upper Endoscopy for GI Fellows by : Douglas G. Adler

Download or read book Upper Endoscopy for GI Fellows written by Douglas G. Adler and published by Springer. This book was released on 2017-05-16 with total page 182 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume provides a concise overview of the most important and vital aspects of upper endoscopy. The text is specifically geared towards first-year GI fellows and novice endoscopists in order to help them rapidly assimilate the core concepts needed to perform upper endoscopy in the most important and most commonly encountered clinical situations. The book also covers the most important variations of normal anatomy and pathology and how to manage them. Key concepts covered include foreign body removal, diagnosis and management of upper GI bleeding, Barrett's Esophagus, evaluation and management of benign and malignant strictures of the esophagus, stomach, and duodenum, submucosal lesions, and evaluation of post operative upper GI anatomy. A plethora of high quality color illustrations and narrated online video clips illustrate major concepts in the book are also included. Written by experts in the field, Upper Endoscopy for GI Fellows is a valuable resource for new physicians just starting to perform upper endoscopy.