Browsing by Subject "Observational studies"

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    • A practical approach to evidence-based dentistry: IV How to use an article about harm 
      Brignardello Petersen, Romina; Carrasco Labra, Alonso; Glick, Michael; Guyatt, Gordon H.; Azarpazhooh, Amir (Amer Dental Assoc, 2015)
      Background and Overview. Questions regarding harm are common in dental practice. Observational, nonrandomized studies (that is, cohort studies and casecontrol studies) are the designs used by investigators to answer most ...