Barros, Paulo Sergio de Moraes, et al. “Experimental Lamellar Corneal Graft in Dogs Using Preserved Equine Pericardium”. Brazilian Journal of Veterinary Research and Animal Science, vol. 36, no. 6, Jan. 1999, pp. 304-7, https://doi.org/10.1590/S1413-95961999000600005.