De Martin, Benedito Wlademir, et al. “Experimental Evaluation of Brain Spect Using d,1 -HMPAO99mTc in Dogs. Anatomo-Physiological Implications”. Brazilian Journal of Veterinary Research and Animal Science, vol. 32, no. 1, Mar. 1995, pp. 1-4, https://doi.org/10.11606/issn.1678-4456.bjvras.1994.52081.