Akaishi, Tetsuya
Kushimoto, Shigeki
Katori, Yukio
Kure, Shigeo
Igarashi, Kaoru
Takayama, Shin
Abe, Michiaki
Tanaka, Junichi
Kikuchi, Akiko
Onodera, Ko
Ishii, Tadashi
Article History
Received: 16 January 2021
Accepted: 24 May 2021
First Online: 2 June 2021
Competing interests
: The authors declare no competing interests.