Functional echocardiography as a precision tool for hemodynamic risk stratification in preterm newborns: A multicenter observational study. Research, Society and Development, [S. l.], v. 15, n. 1, p. e0315150478, 2026. DOI: 10.33448/rsd-v15i1.50478. Disponível em: https://rsdjournal.org/rsd/article/view/50478. Acesso em: 22 jan. 2026.