Abdalla, W. M., & Sultan, E. N. (2025). Endoscopic-guided monocanalicular versus bicanalicular Ritleng intubation for treating congenital nasolacrimal duct obstruction in patients aged 24-53 months. Oman Journal of Ophthalmology, 18(2), 193-197. https://doi.org/10.4103/ojo.ojo_250_24