Suzuki, Shigekatsu
Yamaguchi, Haruyo http://orcid.org/0000-0001-5269-1614
Nakajima, Nobuyoshi
Kawachi, Masanobu
Article History
Received: 18 November 2017
Accepted: 8 May 2018
First Online: 23 May 2018
Competing Interests
: The authors declare no competing interests.