Nakayama Yoichi, Fukuda Akihisa, Kodama Yuzo
Department of Gastroenterology and Hepatology, Kyoto University Graduate School of Medicine, Sakyo-ku, Kyoto, Japan.
Gastroenterology. 2017 Apr;152(5):e7-e9. doi: 10.1053/j.gastro.2016.09.013. Epub 2017 Mar 2.