TY - GEN AU - Davidson,T M TI - Endoscopic sinus surgery SN - 0145-5613 PY - 1994///1013 KW - Endoscopes KW - Endoscopy KW - methods KW - Health Care Costs KW - Humans KW - Paranasal Sinuses KW - diagnostic imaging KW - Tomography, X-Ray Computed N1 - Publication Type: Editorial ER -