Praderi Gambardella, L. A.; Tchekmedyian, V.; Voelker, R.; Balboa, O.; Geninazzi, H.; Matteucci, P.; Praderi, L. A. Laparoscopic Cholecystectomy. Experience of the Italian Hospital Team. Analysis of the First 79 Cases. Cir. Urug. 1992, 62, 116-120.