Hiramatsu, Masafumi http://orcid.org/0000-0002-1054-0612
Sugiu, Kenji http://orcid.org/0000-0001-9006-999X
Yasuhara, Takao http://orcid.org/0000-0002-9161-5283
Hishikawa, Tomohito http://orcid.org/0000-0001-9949-9128
Haruma, Jun http://orcid.org/0000-0002-1009-6216
Takahashi, Yu http://orcid.org/0000-0002-1835-2384
Murai, Satoshi http://orcid.org/0000-0001-8395-072X
Nishi, Kazuhiko http://orcid.org/0000-0003-2643-8513
Yamaoka, Yoko http://orcid.org/0000-0002-7568-3489
Date, Isao http://orcid.org/0000-0002-0218-2595
Article History
Received: 9 March 2020
Accepted: 22 May 2020
First Online: 2 June 2020
Compliance with ethical standards
:
: The authors declare that they have no conflict of interest.
: The study protocol was approved by the Ethics Review Board of our hospital.
: For this type of study, formal consent is not required.
: For this type of study, formal consent is not required.