Demirel S, Demir U. Comparison of the results between monocanalicular and bicanalicular silicone tube intubation in children with congenital nasolacrimal duct obstruction. Ann Med Res . 2021;28(11):2044-2048. Accessed August 25, 2026. http://www.annalsmedres.org/index.php/aomr/article/view/3973