1 Clinical Hospital, Federal University of Minas Gerais, Belo Horizonte, Brazil.
2 Lauro Wanderley Universitary Hospital, Federal University of Paraíba, R. Tab. Stanislau Eloy, 585 - Castelo Branco, João Pessoa, Paraíba, 58050-585, Brazil. [email protected].
3 Clinical Hospital, Federal University of Goiás, Goiânia, Brazil.
4 Getúlio Vargas Hospital, Recife, Brazil.
5 Clinical Hospital, Federal University of Rio Grande Do Sul, Porto Alegre, Brazil.
6 Federal University, Juiz de Fora, Brazil.
7 Federal University of São Paulo, São Paulo, Brazil.