Australian research websites

• Australia & New Zealand Musculoskeletal Clinical Trails Network 
• Australian Clinical Trials
• Australian New Zealand Clinical Trials Registry
• ClinTrial Refer

International research websites

• Clinical Trials – US National Institutes of Health
• UK Clinical Trials Guide
• ISRCTN registry

Research databases

• PubMed – US National Library of Medicine
  More than 28 million citations for biomedical literature from MEDLINE, life science journals, and online books.
• Cochrane Library 
  Provides access to a collection of databases that contain high-quality, independent evidence to inform health care decision-making.