DELGADO, Fabian A; WEHBE, Edgard; ABOU ANTOUN, Smyrna; ARELLANO, Nelson. Air-Fluid Level. Kansas Journal of Medicine, [S. l.], v. 4, n. 2, p. 51–52, 2011. DOI: 10.17161/kjm.v4i2.11338. Disponível em: https://journals.ku.edu/kjm/article/view/11338. Acesso em: 13 apr. 2025.