Fujita, S
Honma, D
Adachi, N
Araki, K
Takamatsu, E
Katsumoto, T
Yamagata, K
Akashi, K
Aoyama, K
Iwama, A
Kitabayashi, I
Article History
Received: 10 May 2017
Revised: 27 July 2017
Accepted: 14 September 2017
First Online: 27 September 2017
Competing interests
: DH, NA and KA are employees of Daiichi Sankyo, Co., Ltd. The remaining authors declare no conflict of interest.