Funding for this research was provided by:
Japan Society for the Promotion of Science (JP18K16292)
Yasuda Memorial Medical Foundation (None)
Uehara Memorial Foundation (None)
Research Grant for Young Scholars (None)
Grant-in-Aid for Genome Research Project (None)
Received: 6 May 2019
Accepted: 24 October 2019
First Online: 11 November 2019
Ethics approval and consent to participate
: Written informed consent was obtained from all participants and this study was approved by the Institutional Review Board of clinical research and genome research committee at Yamanashi Central Hospital. The study complied with Declaration of Helsinki principles.
: Not applicable.
: The authors declare that they have no competing interests.