Ioka, T
Komatsu, Y
Mizuno, N
Tsuji, A
Ohkawa, S
Tanaka, M
Iguchi, H
Ishiguro, A
Kitano, M
Satoh, T
Yamaguchi, T
Takeda, K
Kida, M
Eguchi, K
Ito, T
Munakata, M
Itoi, T
Furuse, J
Hamada, C
Sakata, Y
Article History
Revised: 31 October 2016
Accepted: 5 December 2016
First Online: 12 January 2017
Competing interests
: Tatsuya Ioka has received research fund and honoraria including Speakers from Bureau from Taiho Pharmaceutical and Yakult Honsha. Tatsuya Ioka held an advisory role for Taiho Pharmace utical. Yoshito Komatsu has received research fund and honoraria from Yakult Honsha and Taiho Pharmaceutical. Nobumasa Mizuno, Haruo Iguchi, and Junji Furuse have received honoraria from Taiho Pharmaceutical and Yakult Honsha. Nobumasa Mizuno and Atsushi Ishiguro have received research fund from Taiho Pharmaceutical. Akihito Tsuji and Junji Furuse have received research fund from Taiho Pharmaceutical and Yakult Honsha. Taroh Satoh has received research fund from Yakult Honsha. Junji Furuse and Yuh Sakata held an advisory role for Taiho Pharmaceutical and Yakult Honsha. Chikuma Hamada held an advisory role for Yakult Honsha. All the remaining authors have declared no conflict of interest.