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*International Academy of Pediatric Endoscopy Training, Sheffield Childrens NHS Trust, Western Bank, Sheffield
†Department of Pediatric Gastroenterology, Great Ormond Street Hospital for Children, London, UK
‡University of Texas Southwestern, Medical Center, Children's, Medical Center, Dallas, TX
§Department of Internal Medicine and Liver Research Institute, Seoul, Korea
||Pediatric Gastroenterology, Hospital Pequeno Príncipe—Pontifical, University of Paraná (PUCPR), Curitiba, Brazil.
Address correspondence and reprint requests to Dr Mike Thomson, International Academy of Pediatric Endoscopy Training, Sheffield Childrens NHS Trust, Western Bank, Sheffield S10 2TH, UK (e-mail: firstname.lastname@example.org).
Received 30 August, 2012
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The authors report no conflicts of interest.