title: An analysis of fractures of the facial skeleton in three populations in the Johannesburg urban area.
mesh_terms: D000293:Adolescent; D000328:Adult; D000367:Age Factors; D000368:Aged; D002648:Child; D002675:Child, Preschool; D005006:Ethnicity; D005147:Facial Bones / Q000293:injuries*; D005260:Female; D006801:Humans; D007572:Jaw Fractures / Q000453:epidemiology; D008297:Male; D008337:Mandibular Fractures / Q000453:epidemiology; D008875:Middle Aged; D012737:Sex Factors; D012887:Skull Fractures / Q000453:epidemiology*; D013019:South Africa / Q000208:ethnology