Hamdi T, Sharma RS.
Case of Difficult Identification of Foramen Ovale: Radiofrequency Ablation of Gasserian Ganglion for Trigeminal Neuralgia Secondary to Squamous Cell Carcinoma in a Posthemimandibulectomy, Hemimaxillectomy Patient. 
J Recent Adv Pain
2017;
3
(2):105-107.