Reddy, T. M., T. S. D. Prasad, A. Hemalatha, V. Chanukya, and B. L. Sirisha. “Drug Utilization Pattern Among Geriatrics According to Anatomical Therapeutic Chemical and Defined Daily Dose Classification in a Tertiary Care Hospital”. International Journal of Basic & Clinical Pharmacology, vol. 8, no. 9, Aug. 2019, pp. 1989-93, doi:10.18203/2319-2003.ijbcp20194105.