*Department of Surgery, GASTROBESE, Passo Fundo, RS, Brazil
†Hospital Universitário São Vicente de Paulo, Passo Fundo, RS, Brazil
‡Post-Graduate Program in Surgery, School of Medicine, UFRGS, Porto Alegre, RS, Brazil
§School of Medicine, Hospital de Clinicas de Porto Alegre, UFRGS, Porto Alegre, RS, Brazil
¶Department of Statistics, UFRGS, Porto Alegre, RS, Brazil
||School of Medicine, Universidade de Passo Fundo, Passo Fundo, RS, Brazil.
Reprints: Carlos Augusto S. Madalosso, PhD, Department of Surgery, GASTROBESE, Rua Uruguai 1953, CEP 99010112, Passo Fundo, RS, Brazil. E-mail: [email protected].
Disclosure: The authors declare no conflicts of interest or sources of funding.