title: An angiographic and clinical study of coronary collateral circulation.
mesh_terms: D001157:Arterial Occlusive Diseases / Q000000981:diagnostic imaging; D003097:Collateral Circulation; D017023:Coronary Angiography; D003326:Coronary Circulation; D006322:Heart Aneurysm / Q000000981:diagnostic imaging; D006801:Humans; D009200:Myocardial Contraction; D013997:Time Factors