Guo, Dandan
Wang, Huifang
Liu, Jun
Liu, Hang
Zhang, Ming
Fu, Zixuan
Liu, Xuemei
Article History
Received: 14 August 2021
Accepted: 15 December 2021
First Online: 16 January 2022
Declarations
:
: The study was conducted according to the principles of the Declaration of Helsinki and approved by the Medical Ethics Committee of The Affiliated Hospital of Qingdao University with informed consent of all subjects and/or their legal guardian(s) (the ethics approval number is QYFY WZLL 26283). All methods were performed in accordance with the relevant guidelines and regulations.
: Not applicable.
: The authors report no conflict of interest.