Funding for this research was provided by:
JSPS KAKENHI (16K07140)
Text and Data Mining valid from 2018-09-28
Received: 20 March 2018
Accepted: 11 September 2018
First Online: 28 September 2018
Ethics approval and consent to participate
: This study was approved by the Ethics Committee of Tohoku University Graduate School of Medicine (IRB No.2012–1-403). A participant information statement and consent form were provided and verbally explained to each participant. Participation was voluntary, and participants were allowed time to read the forms prior to the commencement of the survey. Participation in the survey was anonymous and did not affect an employees’ relationship with the employer.
: Not applicable.
: The authors declare that they have no competing interests.
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