1. Online dictionary. Available from: http://www.onelook.com. Accessed 7/2/2003
2. Available from: http://www.americanboardortho.com. Accessed 7/2/2003
3. Information for candidates. Orange book. 6th ed. St Louis: ABO; 2001
4. Information for candidates. 5th ed. St Louis: ABO; October 2000
5. Information for candidates. 5th ed. St Louis: ABO; July 1999