Featured in the lessons:

• March of Dimes' Sickle Cell Fact Sheet

Other references:

• Sickle Cell Information Center
• Newborn Screening Case Management
• About Sickle Cell Disease
• About Sickle Cell Disease in teens
• Sickle Cell Anemia: Signs and Symptoms – MayoClinic.com
• The American Sickle Cell Anemia Association
• March of Dimes