Umemura, Takeji http://orcid.org/0000-0001-7985-919X
Joshita, Satoru
Hamano, Hideaki
Yoshizawa, Kaname
Kawa, Shigeyuki
Tanaka, Eiji
Ota, Masao
Article History
Received: 31 March 2017
Revised: 14 June 2017
Accepted: 14 June 2017
First Online: 13 July 2017
Competing interests
: The authors declare no conflict of interest.
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