Funding for this research was provided by:
The budget for Nuclear Research of the Ministry of Education, Culture, Sports, Science and Technology, Japan (13073-2123-09)
The Japan Health Science Foundation (KH31029)
Received: 7 February 2020
Accepted: 16 May 2020
First Online: 24 May 2020
Ethics approval and consent to participate
: All animal care and experimental procedures were conducted in compliance with the internal regulation for animal use at the National Institute of Health Sciences.
: Not applicable.
: The authors declare that they have no competing interests.