ClinicalTrials.gov Background Information
Understanding Clinical Trials how clinical trials work; potential benefits and risks
About ClinicalTrials.gov background information, history and current status
What's New recently published trials; trials in the news
Help how-to information for finding trials in ClinicalTrials.gov
Glossary terms related to clinical trials
More Resources links to other sources of information on Clinical Trials
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NIH Health Information A-Z index of US National Institutes of Health resources
Genetics Home Reference guide to understanding genetic conditions
MedlinePlus health information from the US National Library of Medicine




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