Takagi, Masaki
Miyoshi, Tatsuya
Nagashima, Yuka
Shibata, Nao
Yagi, Hiroko
Fukuzawa, Ryuji
Hasegawa, Tomonobu
Article History
Received: 25 May 2016
Revised: 30 July 2016
Accepted: 8 August 2016
First Online: 13 October 2016
Competing interests
: The authors declare no conflict of interest.