Kaur, A.; Palta, S.; Chhabra, H.; Singh, G.; Gupta, A. Effect of Benzalkonium Chloride-Preserved Latanoprost and Benzalkonium Chloride-Free Latanoprost on Intraocular Pressure in Patients of Primary Open Angle Glaucoma. Int J Res Med Sci 2018, 6, 2495-2498.