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142341 Pathology

A 59-year-old man experiences acute chest pain and is rushed to the emergency room. Laboratory studies and ECG demonstrate an acute myocardial infarction; however, coronary aery angiography performed 2 hours later does not show evidence of thrombosis. Intravascular thrombolysis that occurred in this patient was mediated by plasminogen activators that were released by which of the following cells?

ACardiac myocytes
BEndothelial cells
CMacrophages
DVascular smooth muscle cells
Pathology
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