Kakuta, Y http://orcid.org/0000-0002-7042-009X
Naito, T
Onodera, M
Kuroha, M
Kimura, T
Shiga, H
Endo, K
Negoro, K
Kinouchi, Y
Shimosegawa, T
Article History
Received: 9 February 2015
Revised: 16 March 2015
Accepted: 28 April 2015
First Online: 16 June 2015
Competing interests
: The authors declare no conflict of interest.