title: B-mode ultrasound in clinical trials. Answers and questions.
authors.forename: J R
authors.initials: JR
authors.lastname: Crouse
mesh_terms: D001161:Arteriosclerosis / Q000000981:diagnostic imaging* / Q000453:epidemiology; D002340:Carotid Artery Diseases / Q000000981:diagnostic imaging* / Q000453:epidemiology; D002986:Clinical Trials as Topic; D003327:Coronary Disease / Q000000981:diagnostic imaging; D005260:Female; D006801:Humans; D008297:Male; D012307:Risk Factors; D014463:Ultrasonography / Q000379:methods