Tuncel ET. Prognostic value of the prognostic nutritional index in severe COVID-19 infection: Prognostic Nutritional Index And Covid-19 Infection. Med Sci Discov [Internet]. 2023 Jan. 17 [cited 2023 Mar. 28];10(1):14-7. Available from: https://medscidiscovery.com/index.php/msd/article/view/859