Zhou, Lili
Jia, Xiao
Yang, Xiangzheng
Article History
Received: 12 February 2021
Accepted: 22 July 2021
First Online: 6 August 2021
Declarations
:
: This study was approved by the Human Ethics Committee of Beijing University of Chinese Medicine Shenzhen Hospital (Longgang) and conducted in accordance with the Guidelines of the Declaration of Helsinki. All participants have written to obtain the informed consent of their parents/legal guardians.
: Not applicable.
: The authors declare that they have no competing interests.