Canola, Júlio Carlos, and Naida Cristina Borges. “Tracheal Compression As Auxiliary Method in the Radiologic Diagnosis of the Cervical Tracheal Collapse”. Brazilian Journal of Veterinary Research and Animal Science, vol. 42, no. 6, Dec. 2005, pp. 414-8, https://doi.org/10.11606/issn.1678-4456.bjvras.2005.26399.