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Cochrane Database of Systematic Reviews (COCH) |
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Online |
Cochrane Collaboration |
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Ja |
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Cochrane Central Register of Controlled Trials (CCTR) |
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Online |
Cochrane Collaboration |
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Ja |
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MEDLINE via Pubmed |
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Online |
National Library of Medicine |
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Ja |
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R & D Insight |
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Online |
Adis International |
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Ja |
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Medline (via OVID) |
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Online |
National Library of Medicine |
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Ja |
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DoctorConsult |
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Online |
Elsevier |
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Ja |
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