META FIGURE1

Studies included in qualitativesynthesis (n=9)

Full-text articles assessed for eligibitily (n=9)

Records after duplicates removed(n=14)

Identification

Studies included in qualitativesynthesis(meta-analysis) (n=9)

     Records identified through datebase                            searching      CBM(n=10);CNKI(n=12);VIP(N=10);           WanFang(n=10);PubMed(n=1);   WOS(n=1);Embase(n=1);Cochrane(n=0)

Records screend(n=10)

Records excluded(n=4)Improper intervention(n=3);others(n=1)

Included

Screening

Additonal records identifiedthrough other sources(n=0)

Eligibility