Asano, Teita
Tanaka, Ken-ichiro
Tada, Arisa
Shimamura, Hikaru
Tanaka, Rikako
Maruoka, Hiroki
Takenaga, Mitsuko
Mizushima, Tohru
Article History
Received: 5 July 2016
Accepted: 5 December 2016
First Online: 5 January 2017
Competing interests
: Tohru Mizushima is the chairman and director of LTT Bio-Pharma Co., Ltd, which may develop aminophylline for IBS-D. Teita Asano and Mitsuko Takenaga belong to an endowed research division of LTT Bio-Pharma Co., Ltd.