Kobayashi, Kazuo
Chin, Keiichi
Umezawa, Shinichi
Ito, Shun
Yamamoto, Hareaki
Nakano, Shiro
Takada, Nobukazu
Hatori, Nobuo
Tamura, Kouichi
Article History
Received: 9 August 2021
Revised: 6 October 2021
Accepted: 5 November 2021
First Online: 24 December 2021
<!--Emphasis Type='Bold' removed-->Compliance with ethical standards
:
: The authors declare no competing interests.