Olascuaga, C., Borgno, L. and González, F. (2001) “Ultrasound in acute cholecystitis”, Cirugía del Uruguay, 71(1-2), pp. 19–24. Available at: https://replica-revista.scu.org.uy/index.php/cir_urug/article/view/4404 (Accessed: 14 June 2026).