Kloetzel, Kurt. 1971. “Tissue Reaction to Schistosoma Mansoni Ova. III – Micro-Circulation in the Intestine of Infected Mice, As Studied by Injection of Contrast Material”. Revista Do Instituto De Medicina Tropical De São Paulo 13 (1): 51-56. https://www.revistas.usp.br/rimtsp/article/view/199151.