[Study of development of the carpal bones of children. 2. Development in the mentally retarded].
D000293:Adolescent; D000367:Age Factors; D001846:Bone Development; D002648:Child; D002675:Child, Preschool; D004314:Down Syndrome; D005260:Female; D006801:Humans; D007223:Infant; D007231:Infant, Newborn; D008607:Intellectual Disability; D008297:Male; D008831:Microcephaly; D010012:Osteogenesis; D014953:Wrist / Q000254:growth & development*