Obinata, D
Takayama, K
Fujiwara, K
Suzuki, T
Tsutsumi, S
Fukuda, N
Nagase, H
Fujimura, T
Urano, T
Homma, Y
Aburatani, H
Takahashi, S
Inoue, S
Article History
Received: 26 October 2015
Revised: 22 February 2016
Accepted: 12 April 2016
First Online: 6 June 2016
Competing interests
: The authors declare no conflict of interest.