1Department of Gastroenterology, Sir Run Run Shaw Hospital, Zhejiang University, Hangzhou, China
2Division of Gastroenterology, Loma Linda University Medical Center, Loma Linda, California, USA
3Division of Gastrointestinal and Liver Diseases, University of Southern California, Los Angeles, California, USA
4Department of Medicine, Loma Linda University Medical Center, Loma Linda, California, USA
5David David Geffen School of Medicine at University of California Los Angeles, Los Angeles, California, USA
Correspondence: John J. Kim, Division of Gastroenterology, Loma Linda University Medical Center, 11234 Anderson Street, Room 1556, Loma Linda, California 92354, USA. E-mail: [email protected]
Received 26 October 2013; accepted 16 June 2014
Guarantor of the article: Bruce A. Runyon, MD.
Specific author contributions: J. Kim: Study design, data collection, analysis and interpretation of data, drafting the manuscript. M. Tsukamoto, A. Mathur, Y. Ghomri, L. Hou, S. Sheibani: Study design, data collection. B. Runyon: Study design, analysis and interpretation of the data, drafting the manuscript. All the authors approved the final draft of the manuscript.
Financial support: None.
Potential competing interests: None.
