Raman, R. B. ., I. . Jamal, Shuchismita, M. K. . Choudhary, and V. . Choudhary. “D-Dimer As a Surrogate Marker for Assessment of Prognosis in COVID-19 Patients: A Retrospective Study in a Tertiary Care Hospital.”. Student’s Journal of Health Research Africa, vol. 6, no. 6, June 2025, p. 7, doi:10.51168/sjhrafrica.v6i6.1883.