Familial differences in the proportion of abnormal hemoglobin present in the sickle cell trait.
D000740:Anemia; D000755:Anemia, Sickle Cell / Q000235:genetics*; D004913:Erythrocytes, Abnormal; D006454:Hemoglobins / Q000002:abnormalities*; D006455:Hemoglobins, Abnormal; D040941:Heredity; D006801:Humans; D012805:Sickle Cell Trait
D006454:Hemoglobins; D006455:Hemoglobins, Abnormal
ANEMIA, SICKLE CELL/heredity; HEMOGLOBIN/abnormalities