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Authors
Fang, Junyan
Wen, Zhonglin
Ouyang, Jinying
Wang, Huihui
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Article History
Received: 3 July 2021
Accepted: 6 October 2021
First Online: 30 October 2021
Declarations
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: The data was from an open database CHNS. This survey was approved by the institutional review committees of the University of North Carolina at Chapel Hill, the National Institute of Nutrition and Food Safety, the Chinese Center for Disease Control and Prevention, and the China–Japan Friendship Hospital, Ministry of Health. All participants provided written informed consent. All methods were carried out in accordance with relevant guidelines and regulations.
: Not applicable.
: The authors declare that they have no competing interests.
