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Authors
Matsuda, Yasuhiro
Okumura, Kazuya
Tasaka, Shigeru
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Funding
Funding for this research was provided by:
The Japan Health Foundation and Mishima Kaiun Memorial Foundation
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Article History
Received: 5 March 2018
Revised: 4 June 2018
Accepted: 6 June 2018
First Online: 3 July 2018
Compliance with ethical standards
:
: The authors declare that they have no conflict of interest.
