title: Evaluation of the 21 mm Björk-Shiley tilting disc valve in patients with narrow aortic roots. A clinical, haemodynamic and angiographic study.
mesh_terms: D000328:Adult; D000368:Aged; D000790:Angiocardiography; D001021:Aortic Valve; D001022:Aortic Valve Insufficiency / Q000628:therapy; D001024:Aortic Valve Stenosis / Q000628:therapy; D001794:Blood Pressure; D001810:Blood Volume; D006328:Cardiac Catheterization; D002306:Cardiac Volume; D005069:Evaluation Studies as Topic; D005260:Female; D006350:Heart Valve Prosthesis; D006801:Humans; D008297:Male; D008875:Middle Aged; D010101:Oxygen Consumption; D014655:Vascular Resistance