References
- Scott Brown W. G. Diseases of the Ear, Nose and Throat. London 1965; vol. 2: 437
- Åhrén C., Thulin C. A. Lethal intracranial complications following inflation in the external auditory canal in treatment of serous otitis media and due to defects in the petrous bone. Acta Otolaryng. (Stockh.) 1965; 60: 407