Dokuni, Kumiko
Matsumoto, Kensuke
Tatsumi, Kazuhiro
Suto, Makiko
Tanaka, Hidekazu
Fukuzawa, Koji
Hirata, Ken-Ichi
Article History
Received: 15 January 2020
Accepted: 7 March 2020
First Online: 18 March 2020
Compliance with ethical standards
:
: The authors declare that they have no conflict of interest.
: This study was approved by the local ethics committee of our institution (No. 180269), and conformed to the ethical principles outlined in the Declaration of Helsinki.