www.nhlbi.nih.gov/health/.../
Tells the conditions of sickle cell disease, like what sickle cell disease is, how common it is, what genes are related to the sickle cell disease, and how people inherit sickle cell disease.

www.stjude.org/
Is about children treatment for sickle cell disease,St. Jude has been researching sickle cell disease since the hospital opened in 1962. The first research grant ever received by the hospital was for the study of sickle cell disease. Since that time, St. Jude has been involved in numerous research studies that have had a major impact on the treatment of sickle cell disease.

www.webmd.com/a-to-z.../
How Sickle cell disease changes normal, round red blood cells into cells that can be shaped like crescent moons. The name "sickle cell" comes from the crescent shape of the cells. (A sickle is a tool with a crescent-shaped blade.)

www.cdc.gov/.../sic
People with SCD can live full lives and enjoy most of the activities that other people do. If you have SCD, it's important to learn how to stay as health as possible.