Endo, Takuyuki
Matsumura, Ritsuko
Tokuda, Isao T.
Yoshikawa, Tomoko
Shigeyoshi, Yasufumi
Node, Koichi
Sakoda, Saburo
Akashi, Makoto
Article History
Received: 8 October 2019
Accepted: 13 April 2020
First Online: 14 May 2020
Competing interests
: The authors declare no competing interests.