Efficacy of point-of-care ultrasound (POCUS) in initial trauma assessment using the e-fast protocol: A single-center observational study. Actas Médicas (Ecuador), [S. l.], v. 35, n. 2, p. 146–153, 2025. DOI: 10.61284/269. Disponível em: https://actasmedicas.ec/index.php/am/article/view/269.. Acesso em: 19 apr. 2026.