Saka, Sanae
Hirawa, Nobuhito
Oka, Akira
Yatsu, Keisuke
Hirukawa, Takeshi
Yamamoto, Ryohei
Matsusaka, Taiji
Imai, Enyu
Narita, Ichiei
Endoh, Masayuki
Ichikawa, Iekuni
Umemura, Satoshi
Inoko, Hidetoshi
Article History
Received: 12 December 2014
Revised: 18 June 2015
Accepted: 29 June 2015
First Online: 23 July 2015
Competing interests
: SU discloses conflict of interest with research grants from Novartis Pharmaceuticals Japan Co. and Pfizer Japan Inc., and TM discloses conflict of interest with a research grant from Chugai Pharmaceutical Co., Ltd. The other authors declare no conflict of interest.