1 Postgraduate Program in Health and Behavior, Universidade Católica de Pelotas, Pelotas, RS, Brazil; Department of Dermatology, Universidade Federal de Pelotas, Pelotas, RS, Brazil. Electronic address: [email protected].
2 Postgraduate Program in Medicine: Surgical Sciences, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil.
3 Department of General Surgery, Universidade Federal de Pelotas, Pelotas, RS, Brazil.