IJSR International Journal of Scientific Research 2277 - 8179 Indian Society for Health and Advanced Research ijsr-12-4-48280 Original Research Paper Role Of Platelet- Lymphocyte Ratio As A Biomarker To Assess The Severity Of Covid-19 Infection G Dr. Lakshmi Priya Asokan Dr. Yogalakshmi E Dr. April 2023 12 4 01 02