Fig. 2From: Prognostic and diagnostic significance of copeptin in acute exacerbation of chronic obstructive pulmonary disease and acute heart failure: data from the ACE 2 studyKaplan-Meier survival plots stratified by biomarker quartiles for (a) copeptin in acute HF, (b) copeptin in AECOPD, (c) NT-proBNP in acute HF, and (d) NT-proBNP in AECOPDBack to article page