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Encyclopedia of Children's Health: Infancy through Adolescence - S |
 | | Sickle cell anemia, also called sickle cell disease (SS disease), is an inherited condition caused by having abnormal hemoglobin, the protein that carries oxygen in the blood. |
| | People with sickle cell anaemia have sickle hemoglobin (HbS) which is different from the normal hemoglobin (HbA). |
| | Single-parent families are families with children under age 18 headed by a parent who is widowed or divorced and not remarried, or by a parent who has never married. |
| www.healthofchildren.com /S/index.html (1740 words) |
