Serum cortisol, lactate and creatinine concentrations in Thoroughbred fillies of different ages and states of training - Nogueira, Guilherme de Paula; Barnabe, Renato Campanarut; Bedran-de-Castro, João César; Moreira, Alankardison Ferreira; Fernandes, Wilson Roberto; Mirandola, Regina Mieko Sakata; Howard, Denise Louise (Brazilian Journal of Veterinary Research and Animal Science, 2002)