Coutinho, I.G., Crema, T.H., Petta, B.F.V. y Fontes, C.E. R. 2021. Retrospective study of polytrauma patients’s medical records that presented abdominal trauma, comperad to abdominal trauma and extra-abdominal injuries. Acta Scientiarum. Health Sciences. 43, 1 (oct. 2021), e56944. DOI:https://doi.org/10.4025/actascihealthsci.v43i1.56944.