Ohkawa, S
Okusaka, T
Isayama, H
Fukutomi, A
Yamaguchi, K
Ikeda, M
Funakoshi, A
Nagase, M
Hamamoto, Y
Nakamori, S
Tsuchiya, Y
Baba, H
Ishii, H
Omuro, Y
Sho, M
Matsumoto, S
Yamada, N
Yanagimoto, H
Unno, M
Ichikawa, Y
Takahashi, S
Watanabe, G
Wakabayashi, G
Egawa, N
Tsuda, M
Hosotani, R
Hamada, C
Hyodo, I
Article History
Received: 9 December 2014
Revised: 7 February 2015
Accepted: 23 February 2015
First Online: 16 April 2015
Competing interests
: Hiroyuki Isayama received honoraria from Yakult Honsha Co., Ltd. and Taiho Pharmaceutical; Chikuma Hamada has received consulting fees from Yakult Honsha Co., Ltd.. The remaining authors declare no conflict of interest.