Koizumi, Shintaroh
Kohno, Hiroki
Watanabe, Michiko
Iwahana, Togo
Maeda, Takuma
Miyata, Shigeki
Kobayashi, Yoshio
Matsumiya, Goro
Article History
Received: 13 May 2018
Accepted: 5 June 2018
First Online: 25 June 2018
Compliance with ethical standards
:
: The authors declare no conflict of interest.