Tarigan, M. et al. 2026. The Assessment on the Cost of Illness Among Patients with Chronic Kidney Disease in Stage 3 and 4 at H. Adam Malik Hospital, Medan. International Journal of Health, Economics, and Social Sciences (IJHESS). 8, 4 (Oct. 2026), 1126–1137. DOI:https://doi.org/10.56338/ijhess.v8i4.12204.