“In the HF group, subsequent univariate and stepwise multivariate analyses with … and five specific AAs, ie, monoethanolamine, methionine, tyrosine, 1-methylhistidine, and histidine … BNP , LV ejection fraction, LV end-diastolic volume index, inferior vena cava diameter, the … the mitral inflow to mitral annulus, and BNP, respectively (p < 0.05).”