Funding for this research was provided by:
Japan Agency for Medical Research and Development and New Energy and Industrial Technology Development Organization (JP17ae0101013)
Japan Science and Technology Agency (JPMJCR1412)
Japan Society for the Promotion of Science KAKENHI (17H06307 and 17H06299)
Received: 6 May 2019
Accepted: 18 October 2019
First Online: 30 October 2019
Ethics approval and consent to participate
: The present study was approved by the ethics committee of the NCGG. All participants were voluntary and the written informed consent was obtained before registering to NCGG Biobank. We also confirmed that all experiments were performed in accordance with relevant guidelines and regulations.
: Not applicable.
: The authors declare that they have no competing interests.