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2081. Finding Evidence for Comparing Medical Interventions (pdf file)
      effectivehealthcare.ahrq.gov/sites/default/files/pdf/methods-guidance-finding-evidence_methods.pdf
      January 01, 2011 - clinical article/ controlled study/ major clinical study/ prospective study/ cohort.mp. … studies/ 13 Or/1-12 1 Clinical study/ 2 Case control study 3 Family study/ 4 Longitudinal study … / 5 Retrospective study/ 6 Prospective study/ 7 Randomized controlled trials/ 8 6 not 7 9 Cohort … analysis/ 10 (Cohort adj (study or studies)).mp. 11 (Case control adj (study or studies)).tw. … $ adj (study or studies)).tw. 15 (cross sectional adj (study or studies)).tw. 16 Or/1-5,8-15

2082. Evidence-based Practice Center Systematic Review Protocol (pdf file)
      effectivehealthcare.ahrq.gov/sites/default/files/pdf/migraine-emergency_research-protocol.pdf
      July 18, 2011 - Inclusion criteria Study design Efficacy and effectiveness: RCTs and NRCTs. … , study design characteristics and methodological quality criteria (see below), study population (including … study inclusion and exclusion criteria, study withdrawals, length of study, duration of patient followup … A population-based study. Headache 2009;49(1):21-30. PMID: 19040677. … Bayesian approaches to random-effects meta-analysis: a comparative study.