Deficiencies of Coagulation-Inhibiting and Fibrinolytic Proteins in Outpatients with Deep-Vein Thrombosis

Abstract
Isolated deficiencies of antithrombin III, protein C, protein S, and plasminogen have been implicated as a cause of deep-vein thrombosis. It is assumed that patients with recurrent, familial, or juvenile thrombosis are very likely to have such a deficiency.