Koya, Toshinari
Kawashima, Hiroki
Ohno, Eizaburo
Ishikawa, Takuya
Ishigami, Masatoshi
Hashimoto, Senju
Goto, Hidemi
Hirooka, Yoshiki http://orcid.org/0000-0001-9639-7425
Article History
Received: 13 February 2019
Accepted: 31 May 2019
First Online: 19 June 2019
Compliance with ethical standards
:
: The authors declare that they have no conflicts of interest. This study received no specific grant from any funding agency in the public, commercial, or not-for-profit sector.
: Informed consent to the protocol was obtained from all patients. The study was approved by our institutional ethics committee for human research.