Retractors for radical antrum or transantral ethmosphenoidectomy operations.
D005004:Ethmoid Bone / Q000601:surgery*; D006801:Humans; D008866:Microsurgery; D019637:Orthopedic Procedures; D013100:Sphenoid Bone / Q000601:surgery*; D060726:Torso
ETHMOID BONE/surgery; SPHENOID BONE/surgery