Zhu, Yufeng
Jin, Xiaoqing
Xu, Lulu
Han, Pei
Lin, Shengwu
Lu, Zhongsheng
Article History
Received: 25 August 2021
Accepted: 3 November 2021
First Online: 29 November 2021
Declarations
:
: This study has been approved by the Ethics Committee of the People’s Hospital of Qinghai Province and the Affiliated Hospital of Qingdao University, and is therefore carried out in accordance with the ethical standards set forth in the appropriate version of the Helsinki Declaration (Brazil Revision 2013). All methods were conducted in accordance with relevant guidelines and regulations. Informed consent for study inclusion was obtained from all patients (or their surrogates) prior to study participation.
: NA (Not Applicable).
: The authors declare that they have no conflict of interest.