1. The haemophilic joints: New perspectives;Mauser-Bunschoten;Haemophilia,2004
2. Pathophysiology: The Biologic Basis for Disease in Adults and Children;McCance,2002
3. Duke University Medical Center Clinical Coagulation Lab http://www.pathology.mc.duke.edu/coag/TestDes.htm
4. National Hemophilia Foundation http://www.hemophilia.org
5. World Federation of Hemophilia http://www.wfh.org