Li, E., A. Chen, and H. Yuen. “A Novel Method to Convert Bicanalicular Intubation into Monocanalicular Intubation in Endoscopic Dacryocystorhinostomy”. Asian Journal of Ophthalmology, Vol. 13, no. 4, 1, pp. 169-72, doi:10.35119/asjoo.v13i4.172.