Rashid, Sabrina, et al. “Platelets and D-Dimer As the Biomarkers for COVID-19: Platelets and D-Dimers As Biomarkers for COVID-19”. Pakistan BioMedical Journal, vol. 4, no. 2, Dec. 2021, pp. 103-6, https://doi.org/10.54393/pbmj.v4i2.92.