Funding for this research was provided by:
the Science and Technology Research Program of Chongqing Municipal Education Commission (KJ1500235)
the Medical Research Program of Chongqing Health and Family Planning Commission (2018MSXM009)
Received: 7 April 2020
Accepted: 15 September 2020
First Online: 23 September 2020
Ethics approval and consent to participate
: The data and samples analyzed in the present study were obtained in accordance with the standards and approved by the Chongqing Medical University Institutional Review Board and the Biomedical Ethics Committee. Informed consent was acquired from each patient.
: Not applicable.
: The authors declare that they have no competing interests.