Yamada, Tomohito http://orcid.org/0000-0002-5828-3993
Yoshida, Toru http://orcid.org/0000-0002-1384-2210
Kawamoto, Akihiro http://orcid.org/0000-0002-7380-0127
Mitsuoka, Kaoru
Iwasaki, Kenji http://orcid.org/0000-0002-3808-8904
Tsuge, Hideaki http://orcid.org/0000-0003-0166-9163
Article History
Received: 17 September 2019
Accepted: 17 January 2020
First Online: 2 March 2020
Competing interests
: The authors declare no competing interests.