1. Department of Interventional Radiology, Medical School of Ribeirão Preto, University of São Paulo (FMRP-USP), Ribeirão Preto/SP, Brazil

2. Department of Emergency Surgery, Medical School of Ribeirão Preto, University of São Paulo (FMRP-USP), Ribeirão Preto/SP, Brazil

3. Department of Digestive Surgery (J.S.S.), Medical School of Ribeirão Preto, University of São Paulo (FMRP-USP), Ribeirão Preto/SP, Brazil