title: Type 1 first branchial cleft anomaly: duplication of the external auditory canal.
authors.affiliation: Department of Otorhinolaryngology-Head and Neck Surgery, Mayo Clinic, Rochester, MN, USA.
authors.forename: Matthew L
authors.initials: ML
authors.lastname: Carlson
authors.forename: David J
authors.initials: DJ
authors.lastname: Archibald
authors.forename: Shelagh A
authors.initials: SA
authors.lastname: Cofer
mesh_terms: D000293:Adolescent; D001934:Branchial Region / Q000002:abnormalities* / Q000601:surgery; D004424:Ear Canal / Q000002:abnormalities* / Q000601:surgery; D006801:Humans; D008297:Male