Shiraishi, Yasuhiro http://orcid.org/0000-0003-1812-0644
Takii, Takahiro
Hagi, Takumi
Mori, Shinnosuke
Kofuji, Yusuke
Kitagawa, Yasutaka http://orcid.org/0000-0002-6583-7026
Tanaka, Shunsuke http://orcid.org/0000-0001-5157-3317
Ichikawa, Satoshi
Hirai, Takayuki http://orcid.org/0000-0003-4747-4919
Article History
Received: 5 January 2019
Accepted: 10 May 2019
First Online: 1 July 2019
Competing interests
: The authors declare no competing interests.