title: On the radiological examination of the eustachian tube in cases of chronic otitis.
authors.forename: S
authors.initials: S
authors.lastname: WELIN
mesh_terms: D005064:Eustachian Tube / Q000000981:diagnostic imaging*; D006801:Humans; D010033:Otitis Media / Q000175:diagnosis*; D011859:Radiography
keywords: EUSTACHIAN TUBE/roentgenography; OTITIS MEDIA/diagnosis