Authors’ contributions
Sha Li: Study design, study implementation, data interpretation, manuscript drafting, Chun Yi: Study design, outcome measurement, data collection, manuscript drafting. Ziyang Yu: Statistical analyses, figures and tables. Aozhou Wu: Statistics, critical revision of article. Yu Zhang: Data analyses, critical revision of article, funding secured. Ye Lin: Study concept, critical revision of article, funding secured. All authors have reviewed and approved the final and submitted version of this manuscript. Sha Li and Chun Yi contributed to the work equally and should be regarded as co-first authors. Yu Zhang and Ye Lin contributed to the work equally and should be regarded as co-corresponding authors.