1. A clinical and medico-social study of haemophilia in Sweden;Ramgren;Acta Med Scand,1962
2. On haemophilia in Sweden and its treatment by blood transfusion;Sköld;Acta Med Scand,1944
3. Death in hemophiliacs;Lewis;JAMA,1976
4. Mortality among patients with haemophilia in Denmark during the period 1949-1978;Bacher;Ugeskr Laeger,1980