Related by context. Frequent words. (Click for all words.) 57 correlational 56 nonrandomized 55 pharmacokinetic pharmacodynamic 55 HORIZONS AMI trial 54 multivariate analyzes 54 urodynamic 54 serologic 54 subgroup analyzes 54 Observational studies 53 biostatistical 53 analgesic efficacy 53 skin sterol 53 epidemiologic studies 52 atherothrombosis 52 placebo controlled clinical trials 52 somatic mutations 52 pharmacological interventions 52 psychiatric morbidity 52 neuropsychological tests 52 pharmacokinetic parameters 52 microRNA expression 52 postmarketing surveillance 52 ICD implantation 52 sociodemographic 52 histopathologic 52 clinicaltrials.gov 52 longitudinal studies 52 double blinded randomized 52 prospective observational 52 retrospectively analyzed 52 biopsychosocial 52 immunohistochemical 52 Randomized controlled 52 NATRECOR R 52 randomized controlled clinical trials 51 generalizability 51 neurocognitive function 51 Baseline characteristics 51 comorbid conditions 51 haematological 51 therapeutic regimens 51 prognostic markers 51 molecular biomarkers 51 logistic regression analysis 51 cortical stimulation 51 multivariate logistic regression 51 journal Ophthalmology 51 MADIT II 51 surrogate markers 51 MR spectroscopy 51 placebo controlled studies 51 neuropsychiatric symptoms 51 adenoidectomy 51 antithrombotic therapy 51 etiologic 51 microarray experiments 51 NHANES III 51 retrospective cohort study 51 neuroimaging studies 51 prospectively defined 51 neuropsychologists 51 nonoperative treatment 51 genetic polymorphisms 51 psychotherapies 51 adenotonsillectomy 51 gynecologic procedures 51 HRQL 51 thyroid nodules 51 placebo controlled clinical 51 liver transplant recipients 51 QTinno 51 multicenter prospective 50 endoscopist 50 serum markers 50 paclitaxel eluting stents 50 psychoeducation 50 GEM OS1 50 Comorbidity 50 thromboprophylaxis 50 carotid stenosis 50 preclinical efficacy 50 phylogenetic analysis 50 poor metabolizers 50 neurologic complications 50 ONTARGET 50 ACRIN 50 chronicity 50 RCTs 50 Cochrane Systematic Review 50 muscle biopsies 50 SYMMETRY trial 50 extracranial 50 REG1 50 SYNTAX 50 meta analyzes 50 pharmacodynamic effects 50 genetic determinants 50 neuroanatomical 50 pulmonary embolism PE 49 biostatisticians 49 MSCT