1. Arnold W, Ganzer U, Iurato S (2007) Checklist: otorinolaringoiatria (edizione Italiana). CIC, Roma, pp 1–645
2. Bojrab DI, Bruderly TE (1997) External otitis. In: Johnson JT, Yu VL (eds) Infections diseases and antimicrobial therapy of the ears, nose and throat. Saunders, Philadelphia, pp 301–313
3. Franco-Vidal V, Blanchet H, Bebear C et al. (2007) Necrotizing external otitis: a report of 46 cases. Otol Neurotol 28:771–773
4. Grandis JR (1997) Necrotizing (malignant) external otitis. In: Johnson JT, Yu VL (eds) Infections diseases and antimicrobial therapy of the ears, nose and throat. Saunders, Philadelphia, pp 314–320
5. Chole RA (1988) A color atlas of ear disease. Wolfe, London