Hadi, D. et al. 2025. Differences In D-Dimer Levels of Moderate And Severe Covid-19 Patients Treated At Hajj Adam Malik Hospital, Medan. International Journal of Health and Pharmaceutical (IJHP). 5, 1 (Feb. 2025), 10–17. DOI:https://doi.org/10.51601/ijhp.v5i1.396.