Wong-Rieger served on the board of directors for Canadian Blood Services before resigning in 1999; as well, she has been the president of the Canadian Hemophilia Society, the Anemia Institute, and the Canadian Organization for Rare Disorders.
It was discovered in 1952 after a young boy named Stephen Christmas was found to be lacking this exact factor, leading to hemophilia.
For example, the daughters of Queen Victoria, Princesses Alice and Beatrix, were carriers of the X-linked hemophilia gene (an abnormal allele of a gene, necessary to produce one of the blood clotting factors).