Frequency of toxocara infection in children attended by the health public service of Maringá, south Brazil - Paludo, Márcia L.; Falavigna, Dina L.M.; Elefant, Guita Rubinsky; Gomes, Monica L.; Baggio, Magda L.M.; Amadei, Luciano B.; Falavigna-Guilherme, Ana Lúcia (Revista do Instituto de Medicina Tropical de São Paulo, 2007)