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Third Edition

Edited by

George Gershman

Professor of Pediatrics, David Geffen School of Medicine

Chief, Division of Pediatrics Gastroenterology, Hepatology and Nutrition

Harbor‐UCLA Medical Center

Torrance, California, USA

Mike Thomson

Professor of Paediatric Gastroenterology and Interventional Endoscopy

Director of the International Academy for Paediatric Endoscopy Training

Centre for Paediatric Gastroenterology, Nutrition and Haepatology

Sheffield Children’s Hospital NHS Foundation Trust

Sheffield, UK;

Portland Hospital for Women and Children

London, UK

This edition first published 2021

© 2021 John Wiley & Sons Ltd

Edition history Blackwell Publishing Ltd. (2e, 2011)

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