Pizzutto, Cristiane Schilbach, Manuela Gonçalves Fraga Geronymo Sgai, Priscila Viau, Marie Odile Monier Chelini, Cláudio Alvarenga de Oliveira, and Marcelo Alcindo de Barros Vaz Guimarães. “Laboratorial and Physiological Validation of Comercial Kits for Quantification of Fecal Corticoids of Captive Chimpanzees (Pan Troglodytes) and Orangutangs (Pongo Pygmaeus) under Environmental Enriched Conditions”. Brazilian Journal of Veterinary Research and Animal Science 45, no. supl. (December 1, 2008): 104-110. Accessed December 5, 2021. https://www.revistas.usp.br/bjvras/article/view/26737.