title: Evaluation of severity of valvular aortic stenosis: an echocardiographic-haemodynamic correlative study.
mesh_terms: D000293:Adolescent; D000328:Adult; D001024:Aortic Valve Stenosis / Q000175:diagnosis*; D002648:Child; D004452:Echocardiography; D005260:Female; D006439:Hemodynamics; D006801:Humans; D008297:Male; D008875:Middle Aged; D011446:Prospective Studies