On the nature and vicissitudes of the accessory air spaces of the middle ear.
D002648:Child; D004427:Ear Diseases; D004432:Ear, Middle / Q000033:anatomy & histology*; D006652:Histological Techniques; D006801:Humans; D007223:Infant; D008417:Mastoiditis
EAR, MIDDLE/anatomy and histology; EAR/diseases; MASTOIDITIS/in infant and child