Marinho, Paulo Vinicius Tertuliano, et al. “Lumbar Myelography in the Diagnosis of Thoracolumbar Intervertebral Disk Extrusion in Dogs: Prospective Study”. Semina: Ciências Agrárias, vol. 35, no. 4, Aug. 2014, pp. 1871-80, doi:10.5433/1679-0359.2014v35n4p1871.