Watanabe, Sugiko https://orcid.org/0000-0002-2120-9546
Iimori, Makoto
Chan, David Virya https://orcid.org/0000-0002-6817-2832
Hara, Eiji
Kitao, Hiroyuki https://orcid.org/0000-0001-8682-2889
Maehara, Yoshihiko
Article History
Received: 20 February 2018
Accepted: 9 July 2018
First Online: 18 July 2018
Competing Interests
: The authors declare no competing interests.