Takahashi, T
Okabe, S
Broin, P Ó
Nishi, A
Ye, K
Beckert, M V
Izumi, T
Machida, A
Kang, G
Abe, S
Pena, J L
Golden, A
Kikusui, T
Hiroi, N
Article History
Received: 23 August 2015
Revised: 13 October 2015
Accepted: 26 October 2015
First Online: 15 December 2015
Competing interests
: The authors declare no conflict of interest.