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Selecting Observational Studies for Comparing Medical Interventions
Project Timeline
Jun 3, 2010
Topic Initiated
Page last reviewed March 2021
Page originally created December 2020
Internet Citation:
Selecting Observational Studies for Comparing Medical Interventions. Content last reviewed March 2021. Effective Health Care Program, Agency for Healthcare Research and Quality, Rockville, MD.
https://effectivehealthcare.ahrq.gov/products/methods-guidance-observational-studies