Review of Anesthetic Protocols in Andean Bears () at the Smithsonian Institution's National Zoological Park, 1995-2016DOI: info:10.1638/2018-0165v. 51No. 1American Association of Zoo Veterinarians67–79
McEntire, Michael S., Hope, Katharine L., Hayek, Lee-Ann C., and Siegal-Willott, Jessica L. 2020. "Review of Anesthetic Protocols in Andean Bears (Tremarctos Ornatus), Sloth Bears (Melursus Ursinus), and Giant Pandas (Ailuropoda melanoleuca) at the Smithsonian Institution's National Zoological Park, 1995-2016." Journal of Zoo and Wildlife Medicine, 51, (1) 67–79. https://doi.org/10.1638/2018-0165.