Text and Data Mining valid from 2018-07-25
Received: 4 April 2018
Accepted: 4 July 2018
First Online: 25 July 2018
Ethics approval and consent to participate
: The present study was performed with the approval of the Clinical Research Ethics Committee of the Toho Omori Medical Center (approval number 24-103).
: Not applicable
: The authors declare that they have no competing interests.
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