Saito, Junichi http://orcid.org/0000-0003-2326-2401
Kumano, Hiroaki
Article History
Received: 13 September 2021
Accepted: 16 February 2022
First Online: 7 March 2022
Declarations
:
: This study was approved by the Waseda University Academic Research Ethical Review Committee (2017–227). Informed consent was obtained by all the study participants. The study protocol followed the guidelines for Epidemiological Studies in accordance with the Declaration of Helsinki.
: Not applicable.
: The authors declare that they have no competing interests.