Limbong, Y.S., Khairunnisa, K. and Wiryanto, W. 2023. Evaluation of the use of antibiotics using the anatomical therapeutic chemical/defined daily dose and Gyssens methods in pneumonia patients at a tertiary care general hospital in Medan. International Journal of Basic & Clinical Pharmacology. 13, 1 (Nov. 2023), 13–21. DOI:https://doi.org/10.18203/2319-2003.ijbcp20233744.