Zhao, Li
Zhang, Jing-jing
Tian, Xin
Huang, Jian-min
Xie, Peng
Li, Xiang-zhou
Article History
Received: 29 March 2021
Accepted: 27 October 2021
First Online: 9 November 2021
Declarations
:
: All procedures performed in study involving human participants were in accordance with the ethical standards of the institutional and/or national research committee and with the 1964 Helsinki Declaration and its later amendments or comparable ethical standards. The study protocol was approved by Hebei Medical University ethical committee (NO. 2017–027-1). The written informed consent was obtained from each participant.
: Not applicable.
: The authors have declared that no competing interests exist.