FAMILIAL INCIDENCE OF POSTERIOR CHOANAL ATRESIA.
D002754:Choanal Atresia; D000013:Congenital Abnormalities; D005826:Genetics, Medical; D006801:Humans; D015994:Incidence; D009666:Nose; D010036:Otolaryngology
ABNORMALITIES; GENETICS, HUMAN; NOSE; OTORHINOLARYNGOLOGY