Ito, Akihiro
Ishida, Tadashi
Tachibana, Hiromasa
Tokumasu, Hironobu
Yamazaki, Akio
Washio, Yasuyoshi
Article History
Received: 8 January 2019
Accepted: 21 November 2019
First Online: 5 December 2019
Competing interests
: Tadashi Ishida has received honoraria from MSD K.K. The other authors have no conflict of interest to disclose.