1. Head and Neck Imaging;Bergeron,1984
2. Paranasal sinus radiology. Part 2A: Ethmoidal sinuses;Dolan;Head Neck Surg.,1982
3. Paranasal sinus radiology. Part 2B: Ethmoidal sinuses;Dolan;Head Neck Surg.,1982
4. Clinical Radiology of the Ear, Nose and Throat;Samuel,1979
5. Radiology of the Ear, Nose and Throat;Valvassori,1982