Authors: Luis V F Oliveira; Isabella C Aguiar; Raquel P Hirata; Newton S Faria Junior; Israel S Reis; Luciana M M Sampaio; Claudia S Oliveira; Paulo T C Carvalho; Fernando S S Leitao Filho; Lilian C Giannasi; Lia Azevedo Pinto; Carlos Alberto Malheiros; Wilson Rodrigues Freitas Journal: BMC Surg Date: 2011-10-17 Impact factor: 2.102