Advanced skeletal development in low-income Negro children.
D001741:Black or African American; D001827:Body Height; D001846:Bone Development; D002648:Child; D002675:Child, Preschool; D003201:Computers; D005260:Female; D006225:Hand / Q000000981:diagnostic imaging / Q000254:growth & development; D006801:Humans; D007223:Infant; D008297:Male; D011859:Radiography; D012737:Sex Factors; D012959:Socioeconomic Factors; D014481:United States; D014953:Wrist / Q000000981:diagnostic imaging / Q000254:growth & development