Hoffmann, R.P. Fortes, E. Pandolfo, R.A. Kaiser, J.C. Bello, A.R.R. Motta-Neto, A.A. Prevalencia de helmintos gastrintestinais do cao errante do municipio de Porto Alegre, Rio Grande do Sul Prevalence of gastrintestinal worms infections from street dogs of Porto Alegre county, Rio Grande do Sul, Brazil Subjects--Topical Terms: CAOHELMINTORIO GRANDE DO SUL