Applicability of portable ultrasound for central venous access in critical neonates: scoping review. Research, Society and Development, [S. l.], v. 9, n. 8, p. e744986495, 2020. DOI: 10.33448/rsd-v9i8.6495. Disponível em: https://www.rsdjournal.org/rsd/article/view/6495. Acesso em: 13 dec. 2025.