Nayak, S. S. R., N. J. Shah, C. E. Deopujari, and P. V. Gunawat. “Endoscopic Trans-Sphenoid Excision of Solid Petrous Apex Lesion: A Case Report”. International Journal of Otorhinolaryngology and Head and Neck Surgery, vol. 3, no. 3, June 2017, pp. 764-7, doi:10.18203/issn.2454-5929.ijohns20173066.