RT Journal Article SR Electronic T1 Hammersmith Cardiology Workshop Series ed. by Attilio Maseri and John F. Goodwin JF Cleveland Clinic Journal of Medicine JO Cleve Clin J Med FD Cleveland Clinic SP 441 OP 441 VO 52 IS 3 A1 William A. Schiavone YR 1985 UL http://www.ccjm.org/content/52/3/441.1.abstract AB