Related by context. Frequent words. (Click for all words.) 64 retrospective cohort study 63 NHANES III 63 Prostate Cancer Prevention 62 Gynecologic Oncology Group 61 prospective observational 60 CALGB 59 Cohort Study 58 postmenopausal hormone therapy 58 substudy 58 Coronary Artery Risk 58 prospectively defined 58 subanalysis 58 liver transplant recipients 58 NHANES 57 Arch Intern Med 57 HBsAg 57 Nutrition Examination Surveys 57 prospective cohort 57 HIV uninfected 57 Atherosclerosis Risk 57 Patient Registry 57 Preterm Birth 57 multivariate analyzes 56 AIDS Clinical Trials 56 nondiabetic 56 Baseline characteristics 56 iPrEx 56 Am J Cardiol 56 placebo controlled clinical 55 J Clin Oncol 55 ClinicalTrials.gov 55 median CD4 55 Childhood Asthma 55 lipid lowering drugs 55 Prostate Specific Antigen PSA 55 de ath 55 ALLHAT 55 virologic failure 55 seroprevalence 55 Influenza vaccination 55 NSABP 55 Cardiovascular Risk 55 Acquired Immune Deficiency Syndromes 55 Phase Ib clinical 55 Comorbidity 55 atherothrombosis 55 J Clin Endocrinol Metab 54 longitudinal study 54 Medical Expenditure Panel 54 J Nutr 54 Radiation Therapy Oncology 54 EVEREST II 54 HSCT 54 fluvastatin 54 multicenter study 54 SWOG 54 Longitudinal Study 54 HeFT 54 End Results SEER 54 Randomized controlled 54 RTOG 54 tibolone 54 #:#-# [023] 54 #:#-# [029] 54 colorectal adenomas 54 lipid lowering therapy 53 NCCTG 53 #:#-# [031] 53 Ann Intern Med 53 neurocognitive function 53 Epidemiologic 53 normotensive 53 Multicenter 53 beta blocker therapy 53 % CI #.#-#.# [003] 53 CMV infection 53 placebo controlled clinical trials 53 seronegative 53 study 53 Cervical Cancer Screening 53 double blinded placebo 53 RRMS patients 53 Meta Analysis 53 Carcinogenesis 53 adenotonsillectomy 53 BRFSS 53 HNSCC 53 Arch Neurol 53 heavily pretreated 53 metreleptin 53 liver biopsies 53 folate supplementation 53 Alzheimer Disease Cooperative 53 sustained virologic response 53 colorectal carcinoma 53 serum concentrations 53 #:#-# [035] 53 clinicaltrials.gov 53 coinfected 53 multicenter Phase 53 nonrandomized