title: A study of the orifice of the human coronary artery.
mesh_terms: D000368:Aged; D001011:Aorta; D001021:Aortic Valve; D002118:Calcium; D003327:Coronary Disease; D004548:Elasticity; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D009203:Myocardial Infarction; D014655:Vascular Resistance
chemical_list: D002118:Calcium