2) Owren PA: Parahaemophilia, haemorrhagic diath-esis due to the absence of a previous unknown clot-ting factor. Lancet I: 446-448, 1947
3) Borchgrevink CF,Owren PA: Surgery in a patient with factor V (proaccelerin) deficiency. Acta Med Scand 170: 743-746, 1961
4) Shulman NR: Surgical care patients with hereditary disorders of blood coagulation, Modern Treatment. Vol.5. Edited by Ratnoff OD. Hoeber-Harpner, New York, 1968, p61
5) Melliger EJ, Duckert F: Major surgery in a subject with factor V deficiency. Thromb Diathe Haematol 21: 438-446,1978