Predictive values of aspartate aminotransferase and gamma-glutamyl transferase for the hepatic accumulation of copper in catlle and buffalo - Minervino, Antonio Humberto Hamad; Barrêto Júnior, Raimundo Alves; Queiroz, Genilson Fernandes de; Headley, Selwyn Arlington; Ortolani, Enrico Lippi (Journal of Veterinary Diagnostic Investigation, 2008)