Igarashi, Masayasu
Matsumoto, Tomohiro
Yagihashi, Fujio
Yamashita, Hiroshi
Ohhara, Takashi
Hanashima, Takayasu
Nakao, Akiko
Moyoshi, Taketo
Sato, Kazuhiko
Shimada, Shigeru http://orcid.org/0000-0001-7081-6759
Article History
Received: 4 April 2017
Accepted: 5 June 2017
First Online: 26 July 2017
Competing interests
: The authors declare no competing financial interests.