Shrestha, K., B. Bhattarai, L. D. Manandhar, S. K. Rai, A. Pandey, and S. Gurung. “Outcome of Probing and Syringing in Congenital Nasolacrimal Duct Obstruction at Various Age Groups in a Tertiary Eye Center in Western Nepal”. Asian Journal of Medical Sciences, vol. 9, no. 6, Oct. 2018, pp. 57-61, doi:10.3126/ajms.v9i6.20508.