Suematsu, Masaya http://orcid.org/0000-0002-1337-0161
Imamura, Toshihiko
Chiyonobu, Tomohiro
Osone, Shinya
Hosoi, Hajime
Article History
Received: 2 December 2017
Revised: 16 February 2018
Accepted: 20 February 2018
First Online: 22 February 2018
Compliance with ethical standards
:
: The authors declare that they have no conflict of interest. A summary of relevant information will be published with the manuscript.