Hereditary deficiency of antithrombin III, Protein C and Protein S: prevalence in patients with a history of venous thrombosis and criteria for rational patient screening - Pabinger, I; Bruckner, S; Kyrle, P A; Schneider, B; Korninger, H C; Niessner, H; Lechner, K (Blood Coag and Fibrinol, 1992)