Contribution to Authorship

HRZ, CZL, SYY, and BYL conceived the study and wrote the protocol. HRZ performed the literature search and drafted the manuscript. XYL, ZQP, ZYX, and YHL participated in the data extraction and quality control. HRZ and SYY performed the statistical analysis. All authors revised the manuscript and approved the final version. SYY is the guarantor for this work and accepts full responsibility for the conduct of the study, had access to the data, and controlled the decision to publish. The corresponding author (HRZ) attests that all listed authors meet authorship criteria and that no others meeting the criteria have been omitted.