1. Malignant tumors of the nasopharynx;Berdal;Acta radiol. (Stockh.),1962
2. Ophthalmoneurologic symptoms in malignant nasopharyngeal tumors;Godtfredsen;Acta psychiat. (Kbh.), Supp.,1944
3. Cavernous sinus syndrome;Jefferson;Tr. Ophth. Soc. U. Kingdom,1953
4. Cancer of the Nasopharynx;Lederman,1961
5. Paralysis of the third, fourth and sixth cranial nerves;Rucker;Am. J. Ophth.,1958