F8 and congenital afibrinogenemia: Distribution of the patients with RBDs was as follows: 185 (73.4%) FVII deficiency, 20 (7.9%) FX deficiency, 19 (7.5%) FXI deficiency, 14 (5.5%) fibrinogen deficiency, 6 (2.3%) FV deficiency, 4 (1.5%) FV and FVIII combined deficiency, 2 (0.7%) FXIII deficiency, and 2 (0.7%) FII deficiency.