1. Roberts HR, Key NS, Escobar MA (2010) Hemophilia A and hemophilia B. In: Kaushansky K, Lichtman MA, Beutler E, Kipps TJ, Seligohn U, Prchal JT (eds) Williams hematology, 8th edn. McGraw-Hill, New York, pp 2009–2031
2. Montgomery RR, Gril JC, Di Paola J (2009) Hemophilia and von Willebrand disease. In: Orkin SH, Nathan DG, Ginsburg D (eds) Hematology of infancy and childhood, 7th edn. Saunders, Philadelphia, pp 1487–1524
3. Klinge J, Auberger K, Auerswald G, Brackmann HH, Mauz-Körholz C, Kreuz W (1999) Prevalence and outcome of intracranial haemorrhage in haemophiliacs–a survey of the paediatric group of the German Society of Thrombosis and Haemostasis (GTH). Eur J Pediatr 158(Suppl 3):S162–S165
4. Johnston MV (2007) Neurodegenerative disorders of childhood. In: Kliegman RM, Behrman RE, Jenson HB, Stanton BF (eds) Nelson textbook of pediatrics, 16th edn. Saunders, Philadelphia, pp 2499–2505
5. Witmer CM, Raffini LJ, Manno CS (2007) Utility of computed tomography of the head following head trauma in boys with haemophilia. Haemophilia 13:560–566