Ohtsuka, Yoshihito
Aoyama, Michio
Takaku, Yuichi
Igarashi, Yasuhito
Hattori, Michinari
Hirose, Katsumi http://orcid.org/0000-0002-0167-5363
Hisamatsu, Shun’ichi
Article History
Received: 12 February 2019
Accepted: 14 May 2019
First Online: 30 May 2019
Competing Interests
: The authors declare no competing interests.