Growth in disadvantaged black children.
D000041:Absenteeism; D001741:Black or African American; D000747:Anemia, Hypochromic / Q000097:blood; D001827:Body Height; D001835:Body Weight; D002648:Child; D002675:Child, Preschool; D003467:Cultural Deprivation; D005260:Female; D006128:Growth; D006400:Hematocrit; D006801:Humans; D008297:Male; D008396:Maryland; D012572:School Health Services; D012959:Socioeconomic Factors