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Authors
Koike, Soichi
Matsumoto, Masatoshi
Kawaguchi, Hideaki
Ide, Hiroo
Atarashi, Hidenao
Kotani, Kazuhiko
Yasunaga, Hideo
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Funding
Funding for this research was provided by:
Japan Society for the Promotion of Science (JP16K00432)
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Article History
Received: 13 August 2017
Accepted: 1 August 2018
First Online: 7 August 2018
Ethics approval and consent to participate
: The Ethics Committee for Epidemiological Research, Jichi Medical University approved this study (Appl. No.17–030). The requirement for consent from study subjects was waived, as this study was a secondary data analysis of a government survey. Access to the survey data was approved by the MHLW.
: 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.
