Observational and Comparative Study of Utility of Transabdominal Ultrasound in Diagnosis of Mild Acute Gastritis. Global Journal of Medical Research, [S. l.], v. 20, n. D1, p. 5–12, 2020. Disponível em: https://medicalresearchjournal.org/index.php/GJMR/article/view/1985. Acesso em: 2 apr. 2026.