RAMASWAMY, R.; HASSAN, H. A. K. Portal Vein Gas in Necrotising Enterocolitis. Journal of Neonatal Surgery, Lahore, Pakistan, v. 6, n. 4, p. 83, 2017. DOI: 10.52783/jns.v6.412. Disponível em: https://www.jneonatalsurg.com/index.php/jns/article/view/412. Acesso em: 20 sep. 2025.