Barbosa, A. J. A., et al. “ A Comparative Study Between Haematoxilin and Eosin and the Peroxidase Anti-Peroxidase Stains for Tissular Parasitism Quantification in Chronic Chagasic Cardiomyopathy ”. Revista Do Instituto De Medicina Tropical De São Paulo, vol. 28, no. 2, Apr. 1986, pp. 91-96, https://revistas.usp.br/rimtsp/article/view/87470.