Funding for this research was provided by:
Japan Society for the Promotion of Science (25380968)
Text and Data Mining valid from 2018-10-12
Received: 31 May 2018
Accepted: 25 September 2018
First Online: 12 October 2018
Ethics approval and consent to participate
: This study was conducted after receiving approval from the Research Ethics Committee of Konan Women’s University in October 2012. All study participants wrote informed consent with each questionnaire.
: Not applicable.
: The authors declare that they have no competing interests.
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