CTR Definition: Clinical Trial Registry | Abbreviation Finder
Impact of searching clinical trial registries in systematic reviews of pharmaceutical treatments: methodological systematic review and reanalysis of meta-analyses | The BMJ
General concepts in biostatistics and clinical epidemiology: Experimental studies with randomized clinical trial design - Medwave
The Embedded Pragmatic Clinical Trial Ecosystem - Rethinking Clinical Trials
What is a clinical trial? | risklick company
Study design classification of registry-based studies in systematic reviews - Journal of Clinical Epidemiology
Clinical Trial Development: A Focus on Publication of Trial Information at The Sixth Annual Pharmaceutical Compliance Congress and Best Practices Forum. - ppt download