Assessed for eligibility (n= Excluded(n=） Not meeting inclusion criteria(n= 研究结果报 Declined to participate(n= Other reasons (n=) 告流程图 Randomized(n=】 Consort Flow Chart) Allocated to intervention(n= Allocated to intervention (n= Received allocated intervention(n=) .Received allocated intervention(n= Did not receive allocated intervention (give Did not receive allocated intervention (give reasons)(n=) reasons)(n= dn-Mollod Lost to follow-up (give reasons)(n=) Lost to follow-up (give reasons)(n= Discontinued intervention(give reasons)(n=) Discontinued intervention(give reasons)(n= sisKjeuv Analyzed(n=） Analyzed (n= Excluded from analysis(give reasons)(n= Excluded from analysis (give reasons)(n=) 6研究结果报 告流程图 （Consort Flow Chart) 6