Teixeira, João Araújo, Carlos Ribeiro, Luís M. Moreira, Fabiana de Sousa, André Pinho, Luís Graça, and José Costa Maia. 2014. “Laparoscopic Cholecystectomy and Open Cholecystectomy in Acute Cholecystitis: Critical Analysis of 520 Cases”. Acta Médica Portuguesa 27 (6). Lisbon, Portugal:685-91. https://doi.org/10.20344/amp.5258.