References
1. Stammberger H, Posawetz W. Functional endoscopic sinus surgery. The Messerklinger technique. Eur Arch Otorhinolaryngol 1990; 247:63-76. 2. Sahin C, Ozcan M, Unal A. Relationship between development of accessory maxillary sinus and chronic sinusitis. Med J DY Patil Univ 2015; 8:606-608. 3. Ghosh P, Kumarasekaran P, Sriraman G. Incidence of accessory ostia in patients with chronic maxillary sinusitis. Int J Otorhinolaryngol Head Neck Surg 2018; 4:443-447. 4. Agency for Health Care Policy and Research. Diagnosis and treatment of acute bacterial rhinosinusitis Evid Rep Technol Assess 1999; 9. 5. Prasanna LC, Mamatha H. The location of maxillary sinus Ostium and its clinical application. Indian J Otolaryngol Head Neck Surg 2010; 62:335-337. 6. Singhal MD, Singhal DMK. Anatomy of accessory maxillary sinus ostium with clinical application. Int J Med Sci Public Health 2014; 3:327-329. 7. Mahajan A, Mahajan A, Gupta K, Verma P, Lalit M. Anatomical variations of accessory maxillary sinus ostium: an endoscopic study. Int J Anat Res Int J Anat Res 2017; 5:3485-3490. 8. Bani-Ata M, Aleshawi A, Khatatbeh A, et al. Accessory maxillary ostia: prevalence of an anatomical variant and association with chronic sinusitis. Int J Gen Med 2020; 13:163-168. 9. Prasanna LC, Mamatha H. The location of maxillary sinus ostium and its clinical application. Indian J Otolaryngol Head Neck Surg. 2010; 62:335-337. 10. Matthews BL, Burke AJ. Recirculation of mucus via accessory ostia causing chronic maxillary sinus disease. Otolaryngol Head Neck Surg 1997; 117:422-423. 11. Mladina R, Vuković K, Poje G. The two holes syndrome. Am J Rhinol Allergy 2009; 23:602-604. 12. Yenigun A, Fazliogullari Z, Gun C, et al. The effect of the presence of the accessory maxillary ostium on the maxillary sinus. Eur Arch Otorhinolaryngol 2016; 273:4315-4319. 13. Hirsch AG, Stewart WF, Sundaresan AS, et al. Nasal and sinus symptoms and chronic rhinosinusitis in a population-based sample. Allergy 2017; 72:274-281. 14. Sundaresan AS, Hirsch AG, Storm M, et al. Occupational and environmental risk factors for chronic rhinosinusitis: a systematic review. Int Forum Allergy Rhinol 2015; 5:996-1003. 15. May M, Sobol SM, Korzec K. The location of the maxillary os and its importance to the endoscopic sinus surgeon. Laryngoscope 1990; 100:1037-1042. 16. Capelli M, Gatti P. Radiological study of maxillary sinus using CBCT: relationship between mucosal thickening and common anatomic variants in chronic rhinosinusitis. J Clin Diagn Res 2016; 10:MC07-MC10. 17. Genc S, Ozcan M, Titiz A, Unal A. Development of maxillary accessory ostium following sinusitis in rabbits. Rhinology 2008; 46:121-124. 18. Aygun N, Zinreich SJ. Radiology of the nasal cavity and paranasal sinuses. In: Cummings eds. Otolaryngology: Head & Neck Surgery. 5th ed. Philadelphia, PA: Elsevier Mosby; 2010:662-663.