Takamura, Yoshihiro
Matsumura, Takehiro
Ohkoshi, Kishiko
Takei, Tatsuhiko
Ishikawa, Kunihiro
Shimura, Masahiko
Ueda, Tetsuo
Sugimoto, Masahiko
Hirano, Takao
Takayama, Kei
Gozawa, Makoto
Yamada, Yutaka
Morioka, Masakazu
Iwano, Masayuki
Inatani, Masaru
Article History
Received: 22 February 2020
Accepted: 22 April 2020
First Online: 8 May 2020
Competing interests
: The authors declare no competing interests.