Hemorrhagic Diathesis Due to PTC (Plasma Thromboplastin Component) Deficiency.

Abstract
The bloods of 5 patients suffering from hemorrhagic diatheses and manifesting prolonged whole blood clotting times were analyzed experimentally as to factors in the coagulation mechanisms. These tests clearly show that 3 of the cases must be classified as PTC deficient, while the other 2 were classical hemophilics.