Muroi, Ai http://orcid.org/0000-0002-4983-6306
Mizumoto, Masashi
Ishikawa, Eiichi
Ihara, Satoshi
Fukushima, Hiroko
Tsurubuchi, Takao
Sakurai, Hideyuki
Matsumura, Akira
Article History
Received: 17 September 2019
Accepted: 16 October 2019
First Online: 14 November 2019
Compliance with ethical standards
:
: The authors declare that they have no conflict of interest.
: The study was approved by the Ethics Committee of the University of Tsukuba Hospital.