Miyagi, Ai http://orcid.org/0000-0003-4323-8716
Inaguma, Yusuke
Tokoyoda, Tomoaki
Nakajima, Takashi
Sezaki, Ryozo
Matsukawa, Tetsuya
Article History
Received: 7 December 2016
Accepted: 24 March 2017
First Online: 20 June 2017
Conflict of interest
: The authors have declared that no conflict of interest exists.
: This article does not contain any studies with human participants performed by any of the authors.
: Informed consent was obtained from participants included in the article.