Chhabra, H., Gupta, A. and Singh, G. (2017) “A comparative study of benzalkonium chloride-free latanoprost versus benzalkonium chloride-preserved latanoprost on ocular surface health in patients of primary open angle glaucoma”, International Journal of Basic & Clinical Pharmacology, 6(5), pp. 1110–1114. doi: 10.18203/2319-2003.ijbcp20171660.