Naoki Shibuya

Kazuhiko Shirakabe^1,2, 

Masaaki Higashiyama¹, 

Naoki Shibuya², 

Kazuki Horiuchi¹, 

Masayuki Saruta², 

Ryota Hokari¹ 

¹Department of internal medicine, National Defense Medical College, 

²Division of Gastroenterology and Hepatology, Department of Internal Medicine, Jikei University School of Medicine