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Hettlich, Bianca Felicitas; Hobson, H Phil; Ducoté, Julie; Fossum, Theresa W; Johnson, James H (2010). Esophageal hiatal hernia in three exotic felines--Lynx lynx, Puma concolore, Panthera leo. Journal of Zoo and Wildlife Medicine, 41(1), pp. 90-94. American Association of Zoo Veterinarians 10.1638/2009-0025.1
