Funding for this research was provided by:
Japan Society for the Promotion of Science (JP18K16292)
Yasuda Memorial Medical Foundation
Uehara Memorial Foundation
Grant-in-Aid for Genome Research Project from Yamanashi Prefecture
Received: 23 April 2019
Accepted: 16 October 2019
First Online: 8 November 2019
Ethics approval and consent to participate
: Approval for this retrospective review study was obtained from the Institutional Review Board at Yamanashi Central Hospital.
: The requirement for informed consent was waived by the institutional review board.
: The authors declare that they have no competing interests.