Related by context. Frequent words. (Click for all words.) 52 thromboprophylaxis 52 haematological 51 retrospective cohort study 51 adenotonsillectomy 51 ultrasound examinations 51 prospective observational 50 electrocardiogram EKG 50 multivariate analyzes 50 ECGs 49 screening colonoscopy 49 NHANES III 49 anabolic agents 48 multicenter study 48 abdominal ultrasound 48 endoscopists 48 lymphadenectomy 48 Urine tests 48 Prostate Specific Antigen PSA 47 warfarin therapy 47 electrocardiography 47 Randomized controlled 47 immunohistochemical 47 neuropsychological testing 47 GnRH agonists 47 multicenter clinical 47 endoscopist 46 Urine samples 46 bioassays 46 prostate biopsy 46 liver biopsies 46 Baseline characteristics 46 MR spectroscopy 45 histopathologic 45 lymph node dissection 45 coronary revascularization 45 coronary intervention 45 catheterisation 45 invasive diagnostic 45 immunological diseases 45 tumor biopsies 45 MBSR 45 anticoagulation therapy 45 bronchial thermoplasty 45 sociodemographic 45 pharmacokinetic studies 44 subgroup analyzes 44 coronary angiography 44 optical colonoscopy 44 CALGB 44 randomized controlled clinical trials 44 multicentre 44 histopathological 44 computed tomography CT scans 44 antidoping 44 placebo controlled clinical 44 OGTT 44 total cholesterol HDL 44 posttreatment 44 subanalysis 44 CT Colonography 44 RCTs 44 darbepoetin 44 bone densitometry 43 concomitant medications 43 longitudinal studies 43 reperfusion therapy 43 phenotyping 43 LC MS MS 43 AlloMap 43 colorectal cancer CRC 43 randomized controlled trial 43 prospective multicenter 43 Biopsies 43 D dimer 43 bone density scans 43 Prostate Cancer Prevention 43 Secondary endpoints 43 pharmacoeconomic 43 DXA 43 electrocardiograms 43 phase IIa 43 testing 43 cognitive domains 43 genotoxicity 43 serologic 42 microbiological testing 42 peptide hormones 42 erythropoietin EPO 42 nonrandomized 42 tests 42 multicenter 42 randomized trials 42 digital rectal examination 42 Radiographs 42 athletes 42 iPrEx 42 ipratropium 42 tandem mass spectrometry 42 NSABP 42 thyroid dysfunction 42 randomized controlled trials