title: A longitudinal study of periodontal disease in Down's syndrome.
mesh_terms: D000293:Adolescent; D002648:Child; D002675:Child, Preschool; D004314:Down Syndrome / Q000150:complications*; D005260:Female; D006801:Humans; D007223:Infant; D008137:Longitudinal Studies; D008297:Male; D009520:New Zealand; D010510:Periodontal Diseases / Q000150:complications*