1Department of Internal Medicine and Liver Research Institute, Seoul National University College of Medicine, Seoul, South Korea;

2Department of Internal Medicine, Seoul National University Bundang Hospital, Seongnam-si, South Korea;

3Department of Internal Medicine, Institute of Gastroenterology, Severance Hospital, Yonsei University College of Medicine, Seoul, South Korea;

4Department of Gastroenterology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, South Korea;

5Department of Human Systems Medicine, Seoul National University College of Medicine, Seoul, South Korea.

Correspondence: Soo-Jeong Cho, MD, PhD. E-mail: [email protected].

SUPPLEMENTARY MATERIAL accompanies this paper at https://links.lww.com/AJG/C854 and https://links.lww.com/AJG/C855