Physiological validation of enzyme immunoassay of fecal glucocorticoid metabolite levels and diurnal variation measured in captive Black-tufted Marmoset Callithrix penicillata (Mammalia: Primates: Callitrichidae) - Pizzutto, Cristiane Schilbach; Sgai, Manuela Gonçalves Fraga Geronymo; Francischini, Cláudia Pereda; Furtado, Priscila Viau; Oliveira, Cláudio Alvarenga de; Guimaraes, Marcelo Alcindo de Barros Vaz (Journal of Threatened Taxa, 2015)