Praderi Gambardella, Luis A, et al. “Laparoscopic Cholecystectomy. Experience of the Italian Hospital Team. Analysis of the First 79 Cases”. Cirugía Del Uruguay, vol. 62, no. 4-5-6, Apr. 1992, pp. 116-20, https://replica-revista.scu.org.uy/index.php/cir_urug/article/view/4050.