AbstractGet full access to this articleView all access options for this article.Get accessReferences1. Onerci M . Endoscopic sinus surgery, 2nd ed. Ankara: Kutsan; 1999. p. 5–20.2. Storz K . The world of endoscopy: endoscopes and instruments for rhinoscopy, sinoscopy, and postrhinoscopy, 5th ed. Tuttlingen: KarL Storz GMbH & Co; 1997. p. 3–26.