Kato, N http://orcid.org/0000-0002-5715-214X
Isojima, T
Yokoya, S
Tanaka, T
Ono, A
Yokomichi, H
Yamagata, Z
Tanaka, S
Matsubara, H
Ishikuro, M
Kikuya, M
Chida, S
Hosoya, M
Kuriyama, S
Kure, S
Article History
Received: 25 April 2017
Revised: 18 August 2017
Accepted: 17 September 2017
First Online: 3 October 2017
Competing interests
: The authors declare no conflict of interest.