David, Erica Boarato, Semíramis Guimarães, Paulo Eduardo Martins Ribolla, Silvana Torossian Coradi, and Diego Peres Alonso. 2007. “ Partial Characterization of Proteolytic Activity in Giardia Duodenalis Purified Proteins ”. Revista Do Instituto De Medicina Tropical De São Paulo 49 (6): 385-88. https://www.revistas.usp.br/rimtsp/article/view/31131.