Nakata, Yuki
Sugawara, Katsuaki
Shimizu, Ryota
Okada, Yoshinori
Han, Patrick
Hitosugi, Taro
Ueno, Keiji
Sato, Takafumi
Takahashi, Takashi
Article History
Received: 13 May 2016
Revised: 29 July 2016
Accepted: 20 August 2016
First Online: 4 November 2016
Competing interests
: The authors declare no conflict of interest.