Pereira, W. L. A., and E. da C. Cardoso. “Osteoporosis in Water Buffalo, in Relation to Age, Clinical Condition of the Animal and Physical-Chemical Bone and Hepatic Copper Status”. Brazilian Journal of Veterinary Research and Animal Science, vol. 47, no. 2, Apr. 2010, pp. 152-9, doi:10.11606/issn.1678-4456.bjvras.2010.26841.