1Division of Gastroenterology, City of Hope National Medical Center, Duarte, California, USA;
2Department of Pathology, City of Hope National Medical Center, Duarte, California, USA;
3Department of Gastroenterology, Kaiser Permanente San Francisco Medical Center, San Francisco, California, USA.
Correspondence: Trilokesh D. Kidambi, MD. E-mail: tkgastroMD@gmail.com.
Received January 18, 2019
Received in revised form April 03, 2019
Accepted April 30, 2019