Wang, Zhi-Chao
Li, Shu-Zhong
Qu, Xin-Fei
Yin, Chu-Qiang
Sun, Yuan-Liang
Wang, Yue-Lei
Wang, Jie
Liu, Chen-Jing
Cao, Zhen-Lu
Wang, Ting
Article History
Received: 10 August 2020
Accepted: 9 March 2021
First Online: 19 March 2021
Declarations
:
: All procedures performed in studies involving human participants were in accordance with the 1964 Helsinki Declaration and its later amendments or comparable ethical standards. This study was reviewed and approved by Ethics Committee of the Affiliated Hospital of Qingdao University (QYFYWZLL-26021). Informed written consent was obtained from all individual participants included in the study, and consent for the participation of minors was obtained from the parents or guardians of minors (minors are considered anyone under the age of 16). The analysis used anonymous clinical data that were obtained after each patient agreed to treatment by written consent.
: Not applicable.
: The authors declare that they have no competing interests.