Affiliation: | (1) Medical Postgraduating of Department of Surgery, State University of Londrina, University Hospital, Parana, Brazil;(2) Professor of Department of Surgery, State University of Londrina, University Hospital, Parana, Brazil;(3) Medical Colaborator of Department of Surgery, State University of Londrina, University Hospital, Parana, Brazil;(4) 600/Ap. 41, Mossoro Street, Zip Code: 86020-290 Londrina, Parana, Brazil |