Zou, Yujiao
Zhang, Yan
Yin, Zhenhua
Wei, Lili
Lv, Bohan
Wu, Yili
Funding for this research was provided by:
the Qingdao Science and Technology Bureau (19-6-1-55-nsh, 19-6-1-55-nsh, 19-6-1-55-nsh, 19-6-1-55-nsh)
Article History
Received: 10 May 2021
Accepted: 12 August 2021
First Online: 22 August 2021
Declarations
:
: This study was approved by the Ethics Committee of the Affiliated Hospital of Qingdao University (No. QYFYWZLL26234). The data analysis procedures are in line with the guidelines in the Declaration of Helsinki. Informed consent was waived by the Ethics Committee of the Affiliated Hospital of Qingdao University due to the review of the study.
: Not applicable.
: The authors declare that they have no competing interests.