Funding for this research was provided by:
Ministry of Science and Technology of the People's Republic of China (2017YFC0907701)
Received: 9 November 2020
Accepted: 4 May 2021
First Online: 13 May 2021
: The authors assert that all procedures contributing to this work comply with the ethical standards of the relevant national and institutional committees on human experimentation and with the Helsinki Declaration of 1975, as revised in 2008. All procedures involving participants were approved by the institutional review board of the National Institute for Nutrition and Health, Chinese Center for Disease Control and Prevention (approval number: 2017-020). Written informed consent was obtained from all participants.
: Not applicable.
: The authors declare that they have no competing interests.