Wener Passarinho Cella1; Adalmir Morterá Dantas2; Alexandre Vasconcelos Lima3; Marcos Pereira de Ávila4
DOI: 10.1590/S0004-27492011000100009
1,Brasília University
2,Federal University of Rio de Janeiro
3,Brasília University Department of Health
4,Federal University of Góias