Cheung, D K An anatomic and CT scan study of the lateral wall of the sphenoid sinus as related to the transnasal transethmoid endoscopic approach. [electronic resource] - The Journal of otolaryngology Apr 1993 - 63-8 p. digital Publication Type: Journal Article ISSN: 0381-6605 Subjects--Topical Terms: CadaverEndoscopesEndoscopy--methodsHumansSphenoid Sinus--anatomy & histologyTomography, X-Ray Computed