Fradique, Caldeira, Vaz Azevedo, Vasco Vasconcelos, Alexandra Pupo, Luísa Quaresma, Noémia Carreira, and Pilar Vicente. 2002. “Multiple Organ Resections in Surgery of the Colon and Rectum”. Acta Médica Portuguesa 15 (5). Lisbon, Portugal:351-4. https://doi.org/10.20344/amp.1974.