Related by context. Frequent words. (Click for all words.) 57 D dimer 57 digital rectal examination 56 liver biopsy 55 barium enema 55 lumbar puncture 55 Prostate Specific Antigen PSA 54 spirometry 54 skin prick 54 Prostate Specific Antigen 54 fecal occult blood 53 surgical biopsy 53 Western Blot 53 finger prick 53 liver biopsies 53 thyroid stimulating hormone 52 chest x rays 52 fingerstick 52 pulmonary TB 52 stool sample 52 chemoprophylaxis 51 immunohistochemical 51 scintigraphy 51 flexible sigmoidoscopy 51 antibiotic prophylaxis 51 venipuncture 50 computed tomography CT scans 50 serologic 50 Computed tomography 50 chest x ray 50 Virtual colonoscopy 50 nasal swabs 50 biopsy specimens 50 Radiographs 49 PCR amplification 49 hemoglobin A1C 49 Biopsies 49 Western blot 49 Doppler ultrasound 49 prostate biopsies 49 biopsies 49 concomitant medications 49 serological 49 screening colonoscopy 49 cervical smear 49 specific antigen 48 FOBT 48 sensitivity specificity 48 sputum samples 48 HBsAg 48 prophylactic antibiotics 48 oral swab 48 chemoradiotherapy 48 CT angiography 48 oral glucose tolerance 48 erythrocyte sedimentation rate 48 colorimetric 48 optical colonoscopy 48 NMP# 48 transvaginal ultrasound 47 SPECT imaging 47 colonoscopy 47 coronary angiography 47 elevated CRP 47 DXA 47 Colonoscopies 47 computed tomography CT scan 47 cystoscopy 47 ultrasonography 47 CT colonography 47 corticosteroid therapy 47 mammographic 47 Preliminary metallurgical 46 needle biopsies 46 biopsy 46 bioassays 46 reflux disease 46 FDG PET 46 nasal swab 46 sputum 46 EEGs 46 OraQuick 46 thyroid nodules 46 fine needle aspiration 46 ERCP 46 povidone iodine 46 MR spectroscopy 46 quantitative PCR 46 hydroxychloroquine 46 throat swab 46 sigmoidoscopy 46 RECAF 46 bone marrow biopsy 46 diagnostically 46 QFT 46 statin medications 46 histopathology 46 creatinine levels 45 bone marrow suppression 45 prostatitis 45 radiograph 45 surgical excision