.http://my.clevelandclinic.org/disorders/pediatric/sickle_cell_disease/childrens_overview.aspx
http://www.stjude.org/stjude/v/index.jsp?vgnextoid=e1e1ef5d00670110VgnVCM1000001e0215acRCRD&vgnextchannel=95bdbfe82e118010VgnVCM1000000e2015acRCRD
http://www.sharecare.com/health/sickle-cell-anemia/sickle-cell-anemia-affect-life
http://www.nhlbi.nih.gov/health/health-topics/topics/sca/livingwith.html
http://learn.genetics.utah.edu/content/disorders/singlegene/sicklecell/
http://www.patient.co.uk/health/Sickle-Cell-Disease-and-Sickle-Cell-Anaemia.htm
http://learn.genetics.utah.edu/content/inheritance/patterns/
https://www.med.umich.edu/yourchild/topics/sicklecell.htm
http://www.stjude.org/stjude/v/index.jsp?vgnextoid=e1e1ef5d00670110VgnVCM1000001e0215acRCRD&vgnextchannel=95bdbfe82e118010VgnVCM1000000e2015acRCRD
http://www.sharecare.com/health/sickle-cell-anemia/sickle-cell-anemia-affect-life
http://www.nhlbi.nih.gov/health/health-topics/topics/sca/livingwith.html
http://learn.genetics.utah.edu/content/disorders/singlegene/sicklecell/
http://www.patient.co.uk/health/Sickle-Cell-Disease-and-Sickle-Cell-Anaemia.htm
http://learn.genetics.utah.edu/content/inheritance/patterns/
https://www.med.umich.edu/yourchild/topics/sicklecell.htm