aDepartment of Medicine, Janakpuri Super Specialty Hospital, New Delhi, New Delhi, India

bDivision of Gastroenterology

cDivision of Biomedical Informatics, Department of Medicine, UC San Diego, La Jolla, California, USA

Correspondence to Siddharth Singh, MD, MS, Associate Professor of Medicine, Division of Gastroenterology, and Division of Biomedical Informatics, Department of Medicine, Director, IBD Center, University of California San Diego, 9452 Medical Center Drive, ACTRI 1W501, La Jolla, CA 92037, USA. Tel: +1 858 246 2352; fax: +1 858 657 7259; e-mail: [email protected]