Goes, Ricardo N. M.D.1,2; Coy, Claudio S. R. M.D.1; Amaral, Carlos A. M.D.1; Fagundes, Joao J. M.D.1; Medeiros, Raul R. M.D.1
1Department of Surgery, Unit of Colo-Proctology
State University of Campinas (UNICAMP)
Campinas, São Paulo
Brazil
2Division of Colorectal Surgery
University of Southern California
Los Angeles
California
Dr. Goes is supported at the University of Southern California by grants from the Fundacao de Amparo a Pesquisa do Estado de Sao Paulo-FAPESP, Brazil.