Senthilkumar, S., A. R. S. A., P. K., D. C. K., and P. K. “Study on Antibiotic Use Among Geriatric Patients Based on Anatomical Therapeutic Classification or Defined Daily Dose Methodology and World Health Organization-Essential Medicine List Access, Watch and Reserve Concept in Tertiary Care Hospital of South India”. International Journal of Basic & Clinical Pharmacology, vol. 9, no. 7, June 2020, pp. 1106-13, doi:10.18203/2319-2003.ijbcp20202950.