Tsukada, Sachiyuki
Ogawa, Hiroyuki http://orcid.org/0000-0002-0370-835X
Nishino, Masahiro
Kurosaka, Kenji
Hirasawa, Naoyuki
Article History
Received: 7 August 2019
Accepted: 28 October 2019
First Online: 11 November 2019
Ethics approval
: The study protocol was approved by the institutional review board of Hokusuikai Kinen Hospital.
: The publication of this study was approved by the institutional review board of Hokusuikai Kinen Hospital.
: The authors declare that they have no competing interests.