Nakayama, M
Sakai, E
Echizen, K
Yamada, Y
Oshima, H
Han, T-S
Ohki, R
Fujii, S
Ochiai, A http://orcid.org/0000-0001-6857-4009
Robine, S
Voon, D C
Tanaka, T http://orcid.org/0000-0002-9761-1750
Taketo, M M
Oshima, M
Article History
Received: 21 December 2016
Revised: 1 May 2017
Accepted: 12 May 2017
First Online: 19 June 2017
Competing interests
: The authors declare no conflict of interest.