Author Contribution
Authors Ning and Chen conceived the study and drafted the manuscript. Huan, Ning, Ma, and Lu designed the study. Gao and Yang collected the data and follow-up. Yi, Gu, and Ning carried out anesthesia. Ning and Zhao performed the statistical analysis. Ma participated in its design and coordination and helped to draft the manuscript. Wen improved and submitted the manuscript. All authors read and approved the final manuscript.