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C. R., J.; R. N., D.; B. L., S. Efficacy and Safety of Topical BAK-Free Travoprost 0.004% Versus BAK-Preserved Travoprost 0.004% in the Treatment of Primary Open Angle Glaucoma: A Comparative Study at a Tertiary Care Hospital. Int J Basic Clin Pharmacol 2017, 6, 2199-2205.