Funding for this research was provided by:
Received: 2 July 2020
Accepted: 3 November 2020
First Online: 12 November 2020
Ethics approval and consent to participate
: This study was approved by the Medical Research Ethics Committee of Tokyo Medical and Dental University and written informed consent was obtained from all participants. The protocol was enrolled in a database of the National University Hospital Council of Japan (UMIN000031924, UMIN000032826) and disclosed.
: This manuscript does not contain any individual data.
: The authors declare that they have no competing interests.