Hamano, Jun
Tachikawa, Hirokazu
Takahashi, Sho
Ekoyama, Saori
Nagaoka, Hiroka
Ozone, Sachiko
Masumoto, Shoichi
Hosoi, Takahiro
Arai, Tetsuaki
Funding for this research was provided by:
research grant of the Mitsubishi Foundation (201930027)
JSPS KAKENHI (19K10551)
Article History
Received: 16 December 2021
Accepted: 19 May 2022
First Online: 26 May 2022
Declarations
:
: This study was conducted under the ethical standards of the Declaration of Helsinki and the Ethical Guidelines for Epidemiological Research issued by the Ministry of Health, Labour and Welfare of Japan. The Institutional Review Board of the University of Tsukuba approved this study (No. 1651). We explained the purpose of this study to the participants and asked for informed consent to participate in this study on our web page.
: Not applicable.
: The authors declare that they have no competing interests.