. PinsolleJSan GalliFSiberchicotF, Modified approach for ethmoid and anterior skull base surgery. Arch Otolaryngol1991;117:779–82.
2.
. DarrouzetVPatuanoESan GalliF, The unique transfrontonasal route. A new access for benign expansive bone tumors of the anterior skull base. Ann Otolaryngol Chir Cervicofac1996; 113: 21–6.