BIBLIOGRAPHY: http://www.sicklecelldisease.org/about_scd/affected1.phtml (Sickle Cell Disease Organization, Jan-19-2011)

http://www.mayoclinic.com/health/sickle-cell-anemia/DS00324/DSECTION=risk-factors (Mayo Clinic, Jan-19-2011)

http://www.ascaa.org/Is_It_Possible_To_Detect_Sickle_Cell_Anemia_In_An_Unborn_Baby.asp

(American Sickle Cell Anemia Association, Jan-19-2011)