Funding for this research was provided by:
National Natural Science Foundation of China (81871212)
Natural Science Foundation of Tibet Autonomous Region (XZ2017ZR-028)
National Key R&D Program of China (2017YFC1002004)
Received: 24 February 2021
Accepted: 17 May 2021
First Online: 4 June 2021
: The study was approved by Peking University Third Hospital Medical Science Research Ethics Committee (Approval Number: M2020567). Approval for a waiver for written consent was obtained from Peking University Third Hospital Medical Science Research Ethics Committee due to the retrospective nature of this study.
: This manuscript has not been published or presented elsewhere and is not under consideration by another journal. All study participants provided informed consent and approved it for publication.
: All authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest.