Stonebraker JS, Bolton-Maggs PH, Soucie JM, Walker I, Brooker M. A study of variations in the reported haemophilia A prevalence around the world. Haemophilia: the official journal of the World Federation of Hemophilia; 20102010. p. 20–32. (5)
Stonebraker JS, Bolton-Maggs PH, Michael Soucie J, Walker I, Brooker M. A study of variations in the reported haemophilia B prevalence around the world. Haemophilia: the official journal of the World Federation of Hemophilia; 20122012. p. e91–e4
United Nations. Concise Report on the World Population Situation in 2014. https://cutt.ly/zWMtKom
World Federation of Hemophilia. WFH Report on the Global Survey, 2015. http://www1.wfh.org/publications/files/pdf-1627.pdf