Funding for this research was provided by:
Xinjiang Tianshan Youth program in 2017 (2017Q008)
Text and Data Mining valid from 2020-04-09
Received: 20 September 2019
Accepted: 23 March 2020
First Online: 9 April 2020
Ethics approval and consent to participate
: Written informed consent was obtained from each participant before the sample collection. The study was approved by the Committee for Ethical Affairs of People’s Hospital of Xinjiang Uygur Autonomous Region, and was performed according to the declaration of Helsinki.
: Not applicable.
: All authors certify that we have no conflict of interest in this study.