NPPB and atrial fibrillation: Significant biomarker correlations in AF were: BNP-NTproBNP (p < 0.01), Copeptin-NTproBNP (p < 0.01), Copeptin-MRproADM (p = 0.01), Copeptin-MRproANP (p = 0.03), BNP-MRproANP (p = 0.03), MRproADM-NTproBNP (p = 0.03), hsTnI-MRproANP (p = 0.04).