Related by context. Frequent words. (Click for all words.) 60 endoscopist 60 mammographic 59 epidural anesthesia 59 Doppler ultrasound 57 Antenatal 57 colposcopy 57 lymphadenectomy 57 antibiotic prophylaxis 57 immunohistochemical 56 noninvasive imaging 56 postpartum hemorrhage 55 transurethral resection 55 invasive diagnostic 55 thromboprophylaxis 55 thrombophilia 55 flexible sigmoidoscopy 55 obstetric complications 55 ultrasound examinations 54 recurrent miscarriage 54 ante natal 54 digital rectal examination 54 fetal abnormalities 54 teratogenic 54 coronary intervention 54 sentinel lymph node biopsy 54 thyroid nodules 54 lymph node dissection 54 ERCP 54 optical coherence tomography 54 sentinel node biopsy 54 shoulder dystocia 54 multivariate analyzes 54 warfarin therapy 54 prenatal diagnosis 53 perinatal mortality 53 Computed tomography 53 endoscopists 53 tomosynthesis 53 echocardiographic 53 catheterisation 53 histopathology 53 optical colonoscopy 53 presurgical 53 unexplained infertility 53 Informed consent 53 computed tomography CT scan 53 comorbid conditions 53 hyperbilirubinemia 53 carotid stenosis 53 transvaginal ultrasound 53 iron supplementation 53 anticoagulation therapy 53 adenotonsillectomy 53 antenatal 53 fluoroscopic 53 coronary angiography 52 tumor resection 52 ovarian stimulation 52 Cesarean delivery 52 sonographic 52 FDG PET 52 ultrasonography 52 thyroidectomy 52 parathyroid 52 QTc prolongation 52 caesarean delivery 52 PET positron emission tomography 52 coronary stenting 52 Sonography 52 IVF ICSI 52 imaging modality 52 diagnostic 52 DXA 52 electrocardiography 52 subgroup analyzes 52 surgical excision 52 screening colonoscopy 52 thrombolytic therapy 52 retroperitoneal 52 EEGs 52 Preoperative 51 endovascular procedures 51 histopathologic 51 multimodality 51 androgen deprivation 51 endometrial ablation 51 fine needle aspiration 51 ultrasound 51 diagnosis PGD 51 lumbar puncture 51 D dimer 51 epithelial ovarian cancer 51 laparotomy 51 breast MRI 51 sonographer 51 breast ultrasound 51 fetal abnormality 51 coronary revascularization 51 chemoprophylaxis 51 BCG vaccination 51 pre natal