1. Brook I. Which exams may be helpful supplements to the nasal exam for chronic sinusitis? In: Brusch JL, editor. Medscape. Updated: Jul 01, 2019. https://www.medscape.com/answers/232791-42195/which-exams-may-be-helpful-supplements-to-the-nasal-exam-for-chronic-sinusitis. Accessed online at 3 Jan. 2020.
2. Hughes AL. Nasal Endoscopy. In: Meyers AD, editor. Medscape. Updated: Feb 08, 2016. https://emedicine.medscape.com/article/1890999-overview. Accessed online at 3 Jan. 2020.
3. Stammberger H. Functional endoscopic sinus surgery. Philadelphia: BC Decker; 1991.
4. Kennedy DW, Zinreich SJ, Rosenbaum AE, Johns ME. Functional endoscopic sinus surgery. Theory and diagnostic evaluation. Arch Otolaryngol. 1985;111(9):576–82.
5. Chia-Hui Chen C, Chyun DA, Li CY, McCorkle R. A single-item approach to screening elders for oral health assessment. Nurs Res. 2007;56(5):332–8.