Elvira, J. Siregar, I. N. D. Lubis, and Herman Hariman, “Relationship between Vascular Cell Adhesion Molecule-1 (Vcam-1) Level with Severity Degree of COVID-19 Patients at General Hospital H. Adam Malik Medan”, JETROMI, vol. 5, no. 4, pp. 208–216, Dec. 2023.