(A) Factor II (prothrombin), (B) Factor V (proaccelerin), (C) Factor VII (proconvertin), (D) Factor VIII (anti-hemophilic factor), (E) Factor IX (Christmas factor), (F) Factor X (Stuart-Prower factor), (G) Factor XI (plasma thromboplastin antecedent), and (H) Factor XII (Hageman factor). (P = mean genetically-engineered pig values with standard deviation; B = mean baboon values with standard deviation; H = human range. B18508 was treated with cobra venom factor).