1. editor. International Classification of Diseases for Oncology, 3rd ed. World Health Organization; 2000.
2. Census. Available at http://factfinder.census.gov/servlet/DTTable?_bm=y&- geo_id=04000US09&-ds_name=PEP_2006_EST&-mt_name=PEP_2006_EST_ G2006_T001 (accessed July 2007).
3. Population Division, US Census Bureau. Annual estimates of the population by five-year age groups for the United States: April 1, 2000 to July 1, 2005, NC-EST2005-01; 2006.
4. NHLBI, NCI, State of the Science implementation working group meeting for myeloproliferative, myelodysplastic, and marrow failure syndromes, 2003.
5. Incidence of polycythemia vera in a defined population