Variability and Discordance between NT-proBNP and Left Ventricular Ejection Fraction in Patients with Heart Failure: A Cross-Sectional Study. The Planet, [S. l.], v. 10, n. 01, p. 71–75, 2026. DOI: 10.5281/zenodo.21781675. Disponível em: https://bdjournals.org/planet/article/view/1343. Acesso em: 9 sep. 2026.