TY - JOUR AU - Dalen, J E; Haffajee, C I; Alpert, J S, III; Howe, J P, III; Ockene, I S; Paraskos, J A TI - Pulmonary embolism, pulmonary hemorrhage and pulmonary infarction JO - N Engl J Med IS - 25 VL - 296 PY - 1977 DO - 10.1056/NEJM197706232962503 SP - 1431 EP - 1435 ER -