Funding for this research was provided by:
the 136 Medical Rejuvenation Project of Shanxi Province
the health research project of Health Commission of Shanxi Province (2018046)
the soft science research plan project of the Shanxi Science and Technology Department (2018041029–6)
Received: 2 October 2020
Accepted: 31 May 2021
First Online: 19 August 2021
: The study had been performed in accordance with the Declaration of Helsinki. The study protocol was conducted with the consent of the Ethics Committee of First Hospital of Shanxi Medical University in China on July 31, 2019 (document number K-SK028). The informed consents to participate in the study had been obtained from participants.
: The authors declare that they have no competing interests.