Funding for this research was provided by:
Grants-in Aid for Scientific Research in Japan (19K09277)
Subsidy Program for the Development of International Standards for the Evaluation of Innovative Medical Devices and Regenerative Medicine Products, of the Ministry of Health, Labor and Welfare, Japan
Received: 27 September 2020
Accepted: 5 January 2021
First Online: 22 January 2021
: The authors declare no competing interests.