Aronova-Tiuntseva, Yelena; Clyde Freeman Herreid (2003). "Hemophilia: "The Royal Disease""(PDF). Science Cases: 1–7. Archived from the original(PDF) on 28 September 2013. Retrieved 23 March 2013.
Aronova-Tiuntseva, Yelena; Clyde Freeman Herreid (2003). "Hemophilia: "The Royal Disease""(PDF). Science Cases: 1–7. Archived from the original(PDF) on 28 September 2013. Retrieved 23 March 2013.