RT Journal Article SR Electronic T1 Coronary arteriography in unstable angina pectoris JF Cleveland Clinic Journal of Medicine JO Cleve Clin J Med FD Cleveland Clinic SP 164 OP 165 VO 47 IS 3 A1 Hutter, Adolph M. YR 1980 UL http://www.ccjm.org/content/47/3/164.abstract AB