[Report of twenty-one cases of blowout fracture].
D000293:Adolescent; D000328:Adult; D002648:Child; D002675:Child, Preschool; D005260:Female; D006801:Humans; D007564:Japan; D008297:Male; D008440:Maxillary Fractures / Q000175:diagnosis; D008443:Maxillary Sinus; D008875:Middle Aged; D009917:Orbital Fractures / Q000175:diagnosis / Q000453:epidemiology*; D012737:Sex Factors; D012887:Skull Fractures / Q000453:epidemiology*