Importance of gastric ultrasound in the study of gastric content. Journal of Statistics on Health Decision, [S. l.], v. 2, n. 2, p. 8–9, 2020. DOI: 10.34624/jshd.v2i2.19437. Disponível em: https://proa.ua.pt/index.php/jshd/article/view/19437. Acesso em: 13 feb. 2026.