Funding for this research was provided by:
Nutrition Scientific Research Foundation of BY-HEALTH (TY0171112)
National Natural Science Foundation of China (31601472)
Received: 25 August 2019
Accepted: 5 February 2020
First Online: 13 February 2020
Ethics approval and consent to participate
: The study was approved by Ethics Committee of Chinese Clinical Trial Registry. All participants gave written informed consent.
: Not applicable.
: The authors declare that they have no competing interests.