1. Singh AP. Functional endoscopic sinus surgery. Atlas and comprehensive review of basic, clinical and surgical considerations. New Delhi: Aditya Medical Publisher; 2002. p. 17–37.
2. Gleeson M, Browning GG, Burton M, Clark R, Hibbert J, Jones NS, Lund VJ, Luxon LM, Wakinson JC. Nasal endoscopy chapter 105. In: Schlosser RJ, Kennedy DW, editors. Scott-Brown’s otorhinolaryngology: head and neck surgery. 7th ed. London: Hodder Arnold; 2008.
3. Gupta N, Neeraj C, Smriti B, Sima D. A comparison of the success rates of endoscopic-assisted probing in the treatment of membranous congenital nasolacrimal duct obstruction between younger and older children and its correlation with the thickness of the membrane at the valve of Hasner. Orbit. 2017;37:257–61.
https://doi.org/10.1080/01676830.2017.1383483
.
4. Blaylock WK, Moore CA, Linberg JV. Anterior ethmoidal anatomy facilitates dacryocystorhinostomy. Arch Ophthalmol. 1990;108:1774–7.
5. Mosher HP. The surgical anatomy of the ethmoid labyrinth. Ann Otol Rhinol Laryngol. 1929;38:869–901.