Wang, Jingyuan
Lv, Bohan
Chen, Xiujuan
Pan, Yueshuai
Chen, Kai
Zhang, Yan
Li, Qianqian
Wei, Lili
Liu, Yan
Article History
Received: 25 August 2021
Accepted: 26 November 2021
First Online: 8 December 2021
Declarations
:
: The protocol for this research project has been approved by the Medical Ethics Committee of the Affiliated Hospital of Qingdao University, with approval number QYFYKYLL411311920. The research conforms to the provisions of the Declaration of Helsinki (as revised in Brazil 2013). Informed consent was obtained from all individual participants included in the study before data collection.
: Not applicable.
: The authors declare that they have no competing interests.