Funding for this research was provided by:
Japan Agency for Medical Research and Development (16mk0102010j003)
Received: 31 October 2019
Accepted: 31 January 2020
First Online: 11 February 2020
Ethics approval and consent to participate
: Because already established cell line (HEK 293 T/17) was used, ethics approval and consent are not applicable.
: Not applicable.
: The authors declare that they have no competing interests.