Parma, D., Armand Ugon, C., Ant´unez, C., Otazu, H., Farcic, A., & Delgado, B. (1980). Acute cholecystitis: review of 500 observations. Cirugía Del Uruguay, 50(1), 16–18. Retrieved from https://replica-revista.scu.org.uy/index.php/cir_urug/article/view/3171