Ali, A.H.M. et al. 2020. The Association of Lymphocyte count, CRP, D-Dimer, and LDH with Severe Coronavirus Disease 2019 (COVID-19): A Meta-Analysis. Sudan Journal of Medical Sciences. 15, 5 (May 2020), 9–19. DOI:https://doi.org/10.18502/sjms.v15i5.7146.