Dutta, S. B., M. A. Beg, S. Mittal, and M. Gupta. “Prescribing Pattern in Ophthalmological Outpatient Department of a Tertiary Care Teaching Hospital in Dehradun, Uttarakhand: A Pharmaco-Epidemiological Study”. International Journal of Basic & Clinical Pharmacology, vol. 3, no. 3, Jan. 2017, pp. 547-52, https://www.ijbcp.com/index.php/ijbcp/article/view/1024.