Stuart Clotting Defect. II. Genetic Aspects of a `New' Hemorrhagic State

Abstract

The literature is ambiguous regarding patients deficient in the clotting factor variously known as "SPCA," "proconvertin," and "Factor VII." Sera from some patients are normal in the thrombo- plastin generation test; those from others are ab- normal. Viper venom corrects the clotting de- fect in some cases, but fails to do so in others.