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Authors
Watanabe, Machiko
Yamada, Chisato
Komagata, Yoshinori
Kikuchi, Hirotoshi
Hosono, Hiroyuki
Itagaki, Fumio
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More Information
Article History
Received: 12 October 2017
Accepted: 28 January 2018
First Online: 1 March 2018
Ethics approval and consent to participate
: This study was conducted with the approval of Teikyo University School of Medicine Ethics Committee (08–068-2). Written informed consent was obtained from all participants.
: Not applicable.
: The authors declare that they have no competing interests.
: Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.
