Sakai, Jun-ichi
Usui, Yoshihiko
Suzuki, Jun
Kezuka, Takeshi
Goto, Hiroshi
Article History
Received: 10 October 2018
Accepted: 22 May 2019
First Online: 27 May 2019
Compliance with ethical standards
:
: The author reports no conflicts of interest in this work.
: For this type of study, formal consent was not required.
: Informed consent was obtained from all participants included in the study.