He, Huijing
Pan, Li
Du, Jianwei
Jin, Yuming
Jia, Pengben
Shan, Guangliang
Article History
Received: 12 April 2021
Accepted: 22 December 2021
First Online: 10 January 2022
Declarations
:
: Ethics approval was obtained from the Bioethical Committee of Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences. All methods were performed in accordance with the relevant guidelines and regulations (Declaration of Helsinki). Informed consent was obtained from parents/guardians of the participants whose age was below 16 and informed consent was obtained from the participants whose age was above 16.
: Not appliable
: The authors declare that they have no competing interests.