Mori, Masato http://orcid.org/0000-0003-4094-974X
Kosaka, Yu http://orcid.org/0000-0001-5575-4668
Watanabe, Masahiro http://orcid.org/0000-0001-6500-2101
Nakamura, Hisashi
Kimoto, Masahide
Article History
Received: 13 August 2018
Accepted: 26 November 2018
First Online: 14 January 2019
Competing interests
: The authors declare no competing interests.