V., M. G.; P., M. Comparison of ultrasound and serum amylase in the diagnosis of acute pancreatitis. International Surgery Journal, [S. l.], v. 7, n. 12, p. 4030–4033, 2020. DOI: 10.18203/2349-2902.isj20205352. Disponível em: https://www.ijsurgery.com/index.php/isj/article/view/6554. Acesso em: 16 apr. 2026.