Okuyama, Takashi
Sameshima, Shinichi
Takeshita, Emiko
Yoshioka, Ryuji
Yamagata, Yukinori
Ono, Yuko
Tagaya, Nobumi
Noie, Tamaki
Oya, Masatoshi
Article History
Received: 30 October 2017
Accepted: 22 May 2018
First Online: 5 June 2018
Ethics approval and consent to participate
: This study was approved by the local ethic committee, and written informed consent was obtained from every participant.
: The authors declare that they have no competing interests.
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