Funding for this research was provided by:
Cooperation program between Sichuan university and Luzhou municipal people’s government (2019cdlz-17)
Received: 23 September 2020
Accepted: 10 November 2020
First Online: 20 November 2020
Ethics approval and consent to participate
: This study was approved by the Ethics Committee of The Affiliate Hospital of Southwest University.
: Informed consent was obtained from all individual participants included in the study.
: The authors declare that they have no competing interests.