Authors’ contributions
Y.C., Y.X., M.M., P.M. and T.P. contributed to conception and design; Y.C., Y.X. and M.M. contributed to acquisition of data; Y.C., L.C., S.Z. and Y.L. contributed to analysis; P.M. and T.P. conducted the clinical trial; Y.C., S.Z. and Y.L. drafted and revised the article. All authors made substantial contributions to conception and design, acquisition of data, or analysis and interpretation of data; took part in drafting the article or revising it critically for important intellectual content; agreed to submit to the current journal; gave final approval of the version to be published; and agreed to be accountable for all aspects of the work.