Related by context. Frequent words. (Click for all words.) 78 randomized trials 76 randomized controlled trials 76 randomized clinical trials 76 meta analysis 75 observational studies 74 RCTs 67 epidemiological studies 65 epidemiologic studies 61 NEJM 60 randomized controlled trial 60 longitudinal studies 58 randomized clinical 57 statins 57 antioxidant supplements 57 rosiglitazone 56 observational study 56 vitro studies 56 prognostic factors 56 vitamin D supplementation 56 randomized controlled 55 studies 55 multicenter 54 statin 54 NSAIDs 54 sertraline 54 post hoc 54 peer reviewed 54 prospective randomized 54 pioglitazone 54 statin therapy 54 dabigatran 53 ticagrelor 53 Health Initiative WHI 53 atypical antipsychotics 53 efficacy endpoints 53 multicenter study 53 heartwire 53 placebo controlled 52 SSRIs 52 vertebroplasty 52 hypertensive patients 52 peer reviewed publications 52 peer reviewed journals 52 tiotropium 52 randomized placebo controlled 52 rofecoxib 52 insulin glargine 52 Cochrane Library 52 comorbidities 52 clinically meaningful 52 postmarketing 52 statin drugs 52 celecoxib 52 anastrozole 52 peer reviewed literature 52 USPSTF 52 NSAID 52 WHI 51 rosuvastatin 51 comorbidity 51 clinical trials 51 statistical significance 51 efficacy 51 DSMB 51 valsartan 51 NHANES 51 donepezil 51 prospective cohort 51 JAMA 51 drug eluting stents 51 inhaled steroids 51 inhaled corticosteroids 51 epidemiologic 50 antiplatelet therapy 50 Arch Intern Med 50 randomized 50 confounding factors 50 warfarin 50 HbA1c levels 50 pre menopausal 50 adjuvant therapy 50 Cochrane Collaboration 50 adjuvant chemotherapy 50 telmisartan 50 lipid lowering 50 mg doses 50 clinically relevant 50 cardiovascular mortality 50 antidepressant medications 50 peer reviewed scientific 50 Randomized 50 salmeterol 50 clinical endpoints 49 postmenopausal women 49 aprotinin 49 multivariate analysis 49 Lancet 49 valproate 49 clopidogrel 49 methodological 49 SSRI