Otsuka, Hiroyuki
Sato, Toshiki
Sakurai, Keiji
Aoki, Hiromichi
Yamagiwa, Takeshi
Iizuka, Shinichi
Inokuchi, Sadaki
Article History
Received: 17 May 2018
Accepted: 10 October 2018
First Online: 25 October 2018
Ethics approval and consent to participate
: This study was approved by the institutional review board for clinical research, Tokai University approval no.: 17R-344.
: Not applicable
: The authors declare that they have no competing interests.
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