RT Journal Article SR Electronic T1 Primary sarcoma of the pulmonary artery JF Cleveland Clinic Journal of Medicine JO Cleve Clin J Med FD Cleveland Clinic SP 115 OP 118 VO 47 IS 2 A1 Fredericka, David N. A1 Hart, Neil J. A1 Cook, Sebastian A. A1 Cordasco, Edward M. YR 1980 UL http://www.ccjm.org/content/47/2/115.abstract AB