Authors: C P F Freitag; C R P Kruel; M E S Duarte; P R E Sanches; P R O Thomé; F Fornari; D Driemeier; F Teixeira; R O Mollerke; S M Callegari-Jacques; S G S Barros Journal: Surg Endosc Date: 2008-09-25 Impact factor: 4.584
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