Text and Data Mining valid from 2018-07-03
Received: 6 May 2018
Accepted: 21 June 2018
First Online: 3 July 2018
Ethics approval and consent to participate
: The study was approved by the Ethics Committee of the University of Occupational and Environmental Health, Japan.
: Informed consent was obtained from the patient for the publication of this report.
: The authors declare that they have no competing interests.
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