Mohsin, H. S., Ali, H. A., & Al-Tu'ma, F. J. (2021). Assessment of von Willebrand Factor/ADAMTS13 Ratio and Vitamin K Levels as Predictor Markers for Severity of COVID-19 Patients. Journal of Contemporary Medical Sciences, 7(5). https://doi.org/10.22317/jcms.v7i5.1100