González-Alcaide, Gregorio, et al. “Scientific Authorships and Collaboration Network Analysis on Chagas Disease: Papers Indexed in PubMed (1940-2009)”. Revista Do Instituto De Medicina Tropical De São Paulo, vol. 54, no. 4, Aug. 2012, pp. 219-28, https://www.revistas.usp.br/rimtsp/article/view/48393.