We searched numerous databases, including SinoMed, CNKI, cqVIP, WanFang, Pubmed, Web of Science, OVID,  Cochrane and Scopus, for published randomized controlled trials (RCTs) and non-randomized controlled trials (non-RCTs) .



SinoMed
We searched numerous databases, including SinoMed, CNKI, cqVIP, WanFang, Pubmed, Web of Science, OVID,  Cochrane and Scopus, for published randomized controlled trials (RCTs) and non-randomized controlled trials (non-RCTs) .



CNKI
We searched numerous databases, including SinoMed, CNKI, cqVIP, WanFang, Pubmed, Web of Science, OVID,  Cochrane and Scopus, for published randomized controlled trials (RCTs) and non-randomized controlled trials (non-RCTs) .



cqVIP
We searched numerous databases, including SinoMed, CNKI, cqVIP, WanFang, Pubmed, Web of Science, OVID,  Cochrane and Scopus, for published randomized controlled trials (RCTs) and non-randomized controlled trials (non-RCTs) .



WanFang
We searched numerous databases, including SinoMed, CNKI, cqVIP, WanFang, Pubmed, Web of Science, OVID,  Cochrane and Scopus, for published randomized controlled trials (RCTs) and non-randomized controlled trials (non-RCTs) .



Pubmed
We searched numerous databases, including SinoMed, CNKI, cqVIP, WanFang, Pubmed, Web of Science, OVID,  Cochrane and Scopus, for published randomized controlled trials (RCTs) and non-randomized controlled trials (non-RCTs) .



Web of Science
We searched numerous databases, including SinoMed, CNKI, cqVIP, WanFang, Pubmed, Web of Science, OVID,  Cochrane and Scopus, for published randomized controlled trials (RCTs) and non-randomized controlled trials (non-RCTs) .



OVID
We searched numerous databases, including SinoMed, CNKI, cqVIP, WanFang, Pubmed, Web of Science, OVID,  Cochrane and Scopus, for published randomized controlled trials (RCTs) and non-randomized controlled trials (non-RCTs) .



Cochrane
We searched numerous databases, including SinoMed, CNKI, cqVIP, WanFang, Pubmed, Web of Science, OVID,  Cochrane and Scopus, for published randomized controlled trials (RCTs) and non-randomized controlled trials (non-RCTs) .



Scopus