Authors’ contributions
GZL
XDY: study concept, data verification, literature review, manuscript writing, and manuscript revision. HL (Lu Huang): study concept, data verification, literature review, manuscript writing, and manuscript revision. HL (Li He): data verification, literature review, and manuscript writing. LYH: preparation of data for statistical analysis, manuscript writing, and approval of statistical results and outcomes. ZYY, ZQ: manuscript revision, literature review, and data verification for revised manuscript. GZL, HQN: preparation and verification of data for statistical analysis, manuscript revision, and final approval of the manuscript.