Ethical considerations
The data collected in the study will be entered and stored in a central computerized system with username assigned centrally and passwords protected. Only de-identified data will be used for data analysis.
The study was approved by the Institutional Review Board of Peking University Shougang Hospital (IRBK-2020-014-01), and written informed consent was obtained from each patient included in the study. The study protocol conforms to the ethical guidelines of the 1975 Declaration of Helsinki. The trial is registered on http://www.chictr.org.cn/ (ChiCTR2000034085).