Fig. 2
Kaplan–Meier survival curves for the association between the initial NLR tertiles and 30-day mortality. Abbreviation: NLR, neutrophil-to-lymphocyte ratio
Fig. 2 | BMC Pulmonary Medicine
Kaplan–Meier survival curves for the association between the initial NLR tertiles and 30-day mortality. Abbreviation: NLR, neutrophil-to-lymphocyte ratio