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Sickle cell anemia - Symptoms & causes - Mayo Clinic
Sickle cell disease - Wikipedia
Sickle Cell Disease (SCD): Types, Symptoms & Causes - Cleveland Clinic
Sickle Cell Anemia: Symptoms, What It Is, Causes & Treatment
About Sickle Cell Disease | Sickle Cell Disease (SCD) | CDC
Sickle Cell Disease - What Is Sickle Cell Disease? - NHLBI, NIH
Sickle cell anemia - Diagnosis & treatment - Mayo Clinic
Sickle Cell Disease - Johns Hopkins Medicine
Sickle Cell Disease (SCD) | Sickle Cell Disease (SCD) | CDC
Sickle Cell Disease - Sickle Cell Disease - The Merck Manuals