Santos, Mariana, Rui Ferreira de Almeida, Paulo Martins, Gil Gonçalves, Mário Nora, & Horácio Scigliano. " Sigmoid colon endometriosis treated laparoscopically: a difficult preoperative diagnosis." Revista Portuguesa de Cirurgia [Online],.17 (2011): 45-48. Web. 27 Apr. 2024