Evaluation of parasitemia by qPCR in patients with chronic Chagas disease treated with benznidazole oleh Bianca Sabaini Pavan Tycha, Eros Antônio de Almeida, Rodrigo Gonçalves de Lima, Jamiro Silva da Wanderley, Luiz Cláudio Martins, Sandra Cecília Botelho Costa, Gláucia Elisete Barbosa Marcon