Predictive values of aspartate aminotransferase and gamma-glutamyl transferase for the hepatic accumulation of copper in sheep with or without zinc supplementation - Minervino, Antonio Humberto Hamad; Araújo, C. C. S. A; Reis, L. F; Rodrigues, F. L. M. A; Trivellato, B. F; Souza, I. K. F; Headley, Selwyn Arlington; Sousa, R. S; Ortolani, Enrico Lippi (World Buiatrics Congress, 2012)