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Database | Search strategy |
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PubMed | “Sjögren’s syndrome” (mesh) and (“humans” (MeSH terms) and (meta-analysis (ptyp) OR randomized controlled trial (ptyp)) |
Cochrane Library | “Primary sjögren’s syndrome in record title in cochrane central register of controlled trials” |
China Knowledge Resource Integrated Database (CNKI) | “Sjögren’s syndrome in record title AND random in all text” |
VIP Database for Chinese Technical Periodicals (VIP) | “Sjögren’s syndrome in record title AND random in all text” |
Wanfang Data | “Sjögren’s syndrome in record title AND random in all text” |
Chinese Biomedical Database (CBM) | “Sjögren’s syndrome in record title AND random in all text” |
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