[1. Messerklinger W. Endoscopy of the nose. Lippincott Williams and Wilkins; 1978.]Search in Google Scholar
[2. Mosher HP. LXXII. Symposium of the ethmoid: The surgical anatomy of the ethmoidal labyrinth. Ann Otol Rhinol Laryngol, 1929;38(4):869-901.10.1177/000348942903800401]Search in Google Scholar
[3. Alazzawi S, Omar R, Rahmat K, Alli K. Radiological analysis of the ethmoid roof in the Malaysian population. Auris Nasus Larynx. 2012;39(4):393-6. DOI: 10.1016/j.anl.2011.10.002.10.1016/j.anl.2011.10.00222055509]Search in Google Scholar
[4. Gibelli D, Cellina M, Gibelli S, Cappella A, Oliva AG, Termine G, et al. Anatomical variants of ethmoid bone on multidetector CT. Surg Radiol Anat. 2018;40(11):1301-11. DOI: 10.1007/s00276-018-2057-6. Epub 2018 Jun 22.10.1007/s00276-018-2057-629934677]Search in Google Scholar
[5. Kamel R. Endoscopic anatomy of the lateral nasal wall, ostiomeatal complex and anterior skull base: a step-by-step guide. Endo-Press; 2005.]Search in Google Scholar
[6. Keros P. On the practical value of differences in the level of the lamina cribrosa of the ethmoid. Z Laryngol Rhinol Otol. 1962;41:808-13.]Search in Google Scholar
[7. Paber JELB, Cabato MSD, Villarta RL, Hernandez JG. Radiographic analysis of the ethmoid roof based on Keros classification among Filipinos. Philipp J Otolaryngol Head Neck Surg. 2008;23(1):15-19.10.32412/pjohns.v23i1.763]Search in Google Scholar
[8. Solares CA, Lee WT, Batra PS, Citardi MJ. Lateral lamella of the cribriform plate: software-enabled computed tomographic analysis and its clinical relevance in skull base surgery. Arch Otolaryngol Head Neck Surg. 2008;134(3):285-9. DOI: 10.1001/archotol.134.3.285.10.1001/archotol.134.3.28518347254]Search in Google Scholar
[9. Souza SA, de Souza MMA, Idagawa M, Wolosker AMB, Ajzen SA. Computed tomography assessment of the ethmoid roof: a relevant region at risk in endoscopic sinus surgery. Radiol Bras. 2008;41(3):143-7.10.1590/S0100-39842008000300003]Search in Google Scholar
[10. May M, Levine HL, Mester SJ, Schaitkin B. Complications of endoscopic sinus surgery: Analysis of 2108 patients—incidence and prevention. Laryngoscope. 1994;104(9):1080-3.10.1288/00005537-199409000-000068072353]Search in Google Scholar
[11. V AM, Santosh B. A study of clinical significance of the depth of olfactory fossa in patients undergoing endoscopic sinus surgery. Indian J Otolaryngol Head Neck Surg. 2017;69(4):514-22. DOI: 10.1007/s12070-017-1229-8. Epub 2017 Nov 7.10.1007/s12070-017-1229-8571491729238684]Search in Google Scholar
[12. Nair S. Importance of ethmoidal roof in endoscopic sinus surgery. [Internet]. Sci Rep. 2012;1:251. DOI: 10.4172/scientificreports.251.10.4172/scientificreports.251]Search in Google Scholar
[13. Lebowitz RA, Terk A, Jacobs JB, Holliday RA. Asymmetry of the ethmoid roof: analysis using coronal computed tomography. Laryngo-scope. 2001;111(12):2122-4. DOI: 10.1097/00005537-200112000-00007.10.1097/00005537-200112000-0000711802008]Search in Google Scholar
[14. Ali A, Kurien M, Shyamkumar NK. Anterior skull base: High risk areas in endoscopic sinus surgery in chronic rhinosinusitis: A computed tomographic analysis. Indian J Otolaryngol Head Neck Surg. 2005;57(1):5-8. DOI: 10.1007/BF02907616.10.1007/BF02907616345155023120113]Search in Google Scholar
[15. Chou TW, Chen PS, Lin HC, Lee KS, Tsai HT, Lee JC, et al. Multiple analyses of factors related to complications in endoscopic sinus surgery. J Chin Med Assoc. 2016;79(2):88-92. DOI: 10.106/j. jcma.2015.11.001. Epub 2015 Dec 17.10.1016/j.jcma.2015.11.00126706826]Search in Google Scholar
[16. Maran AGD, Lund VJ, Mackay IS, Wilson J. Endoscopic sinus surgery: Report of Royal College of Surgeons of Edinburgh. Edinburgh: RCSE; 1993.]Search in Google Scholar