Neutrophil‐to‐lymphocyte ratio and D‐dimer are biomarkers of death risk in severe COVID‐19: a retrospective observational study - Terra, Patrícia Oliveira Cunha; Donadel, Camila Derminio; Oliveira, Luciana Correa; Menegueti, Mayra Gonçalves; Martins, Maria Auxiliadora; Calado, Rodrigo Tocantins; De Santis, Gil Cunha (Health Science Reports, 2022)