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  1. ClinicalTrials.gov

  2. Finding a Clinical Trial | National Institutes of Health (NIH)

  3. International Clinical Trials Registry Platform (ICTRP)

  4. Clinical Trials - Clinical Trials - Mayo Clinic Research

  5. Clinical Trials Home | Regeneron Pharmaceuticals

  6. NIH Clinical Center: Search the Studies

  7. Clinical Trials - National Institutes of Health (NIH)

  8. The Modernized ClinicalTrials.gov Will Become the Singular Website ...

  9. Clinical Trials Information - NCI - National Cancer Institute

  10. The Modernized ClinicalTrials.gov Website is Here!