Funding for this research was provided by:
The Xinjiang Production and Construction Corps Special Fund (2013BB015)
Received: 29 February 2020
Accepted: 24 September 2020
First Online: 2 October 2020
Ethics approval and consent to participate
: All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional and/or national research committee (Medical Ethics Committee of the First Affiliated Hospital of Shihezi University School of Medicine, 2013-028-01) and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards. Informed consent was obtained from all individual participants included in the study.
: Not applicable.
: The authors declare that they have no competing interests.