1. National Heart, Lung, and Blood Institute. Who Is at Risk for Sickle Cell Disease? http://www.nhlbi.nih.gov/health/health-topics/topics/sca/atrisk. Published September 28, 2012. Accessed June 12 2015.
2. Screening student athletes for sickle cell trait–a social and clinical experiment;Bonham;N Engl J Med,2010
3. Kark J. Sickle Cell Trait. http://sickle.bwh.harvard.edu/sickle_trait.html. Published December 20, 2000.
4. Sickle cell trait and sudden death–bringing it home;Mitchell;J Natl Med Assoc,2007
5. Some negative aspects of state health departments' policies related to screening for sickle cell anemia;Rutkow;Am J Publ Health,1974