Nasution, E. S., R. Muchtar, and R. A. Syahputra. “The Study of Drug-Related Problems in Pediatric Inpatients Utilizing Antibiotics in Universitas Sumatera Utara Hospital Medan, Indonesia”. Open Access Macedonian Journal of Medical Sciences, vol. 10, no. A, Jan. 2022, pp. 187-91, doi:10.3889/oamjms.2022.7552.