(1)
Silva, M. R. C.; Sterman, F. de A.; Almeida, A. H. de. Ultrasonographic Mensuration of Head Dimentions in Boxers Normal Gestations and Its Correlation With the Gestationalage. Braz. J. Vet. Res. Anim. Sci. 2007, 44 (supl.), 25-29. https://doi.org/10.11606/issn.1678-4456.bjvras.2007.26586.