RLO: Search strategy for locating randomised controlled trials

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Resources

Title/link Description
British National Bibliography for Report Literature  
Cochrane Collaboration  
Cochrane Library  
Cochrane Reviewers Handbook Online searchable version. There's also a downloadable version for offline use.
Controlled Trials Register  
Embase  
Medline  
National Technical Information Service  
PubMed  
SIGLE System for Information on Grey Literature in Europe