Antonietto, Eduardo, et al. “Changes of Bone Mineral Density in Vertebrae of Rats Subjected to Hindlimb Unload”. Brazilian Journal of Veterinary Research and Animal Science, vol. 49, no. 3, June 2012, pp. 185-92, https://doi.org/10.11606/issn.1678-4456.v49i3p185-192.