Hiraga, Chiho
Yamamoto, Satoshi
Hashimoto, Sadamitsu
Kasahara, Masataka
Minamisawa, Tamiko
Matsumura, Sachiko
Katakura, Akira
Yajima, Yasutomo
Nomura, Takeshi
Shiba, Kiyotaka
Article History
Received: 2 November 2020
Accepted: 18 January 2021
First Online: 8 February 2021
Competing interests
: The authors declare no competing interests.