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  1. Step 3: Clinical Research | FDA - U.S. Food and Drug Administration

  2. Clinical Trial Phases: What Happens in Phase 0, I, II, III, and IV

  3. Anatomy of a Clinical Trial: The Purpose, People, and Phases of ...

  4. Clinical Research Phases and the Path to Drug Approval

  5. Clinical Trials and Clinical Research: A Comprehensive Review

  6. Clinical trials - Latest research and news - Nature

  7. 11 clinical trials that will shape medicine in 2023 - Nature

  8. Shifts in the clinical trial landscape - Nature

  9. Phases of clinical research - Wikipedia

  10. Clinical Trials Phases: Definition of Phase 1, 2, 3 & 4 - Pfizer

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