Funding for this research was provided by:
Fundamental Research Funds for the Gansu Nephro-Urological Clinical Center (mnlczxkf-13)
GanSu Province Health Industry Research Project (GanSu Province Health Industry Research Project)
Received: 30 November 2019
Accepted: 7 September 2020
First Online: 14 September 2020
Ethics approval and consent to participate
: This study was approved by the Ethics Committee of Lanzhou University Second Hospital (No. 2019A-154). Written informed consent was obtained from all patients included in the study.
: Not applicable.
: The authors declare that they have no competing interests.