Liu, Bin http://orcid.org/0000-0003-0713-4346
Zhang, Gang http://orcid.org/0000-0003-0099-2110
Cui, Shukun http://orcid.org/0000-0001-5372-3382
Du, Guoliang http://orcid.org/0000-0002-1874-6084
Funding for this research was provided by:
Hebei Provincial Health Commission (20191770)
Article History
Received: 9 October 2020
Accepted: 31 December 2020
First Online: 25 January 2021
Compliance with Ethical Standards
:
: The authors declare that they have no conflict of interest.
: The study was approved by the Ethical Review Committee of Cangzhou Central Hospital.
: Each informed consent was acquired.