T., K. S.; NAIR, A. G.; R., S. K. H.; N., S. Study to determine the correlation of platelet-lymphocyte ratio in COVID 19 positive and negative severe acute respiratory infections cases. International Journal of Advances in Medicine, [S. l.], v. 8, n. 8, p. 1097–1101, 2021. DOI: 10.18203/2349-3933.ijam20212770. Disponível em: https://www.ijmedicine.com/index.php/ijam/article/view/3029. Acesso em: 24 dec. 2025.