Rotta, I. T., and M. Rönnau. “Histological Comparison Between the esophagus’ Cervical Region of Collared Peccary (Tayassu Tajacu LINNAEU - 1758) and of Wild Board (Sus Scrofa Scrofa Linnaeu - 1758)”. Brazilian Journal of Veterinary Research and Animal Science, vol. 43, no. 6, Dec. 2006, pp. 762-6, doi:10.11606/issn.1678-4456.bjvras.2006.26554.