Itoh, Taihei
Yoshida, Yukihiko
Morishima, Itsuro
Yamada, Takumi http://orcid.org/0000-0002-9956-0395
Article History
Received: 14 January 2018
Accepted: 12 March 2018
First Online: 22 March 2018
Compliance with ethical standards
: The institutional review board approved the study protocol, and written informed consent was obtained from all patients before the study.