Nishiki, Shingo
Lee, Kenichi
Kanai, Mizue
Nakayama, Shu-ichi
Ohnishi, Makoto
Funding for this research was provided by:
Ministry of Health, Labour and Welfare (H28-Shinkou-Ippan-008)
Ministry of Education, Culture, Sports, Science and Technology (18K09184)
Article History
Received: 21 October 2020
Accepted: 19 January 2021
First Online: 4 February 2021
Competing interests
: The authors declare no competing interests.