*Ettinger, S.J. and Feldman, E. C. (2000) '''Textbook of Veterinary Internal Medicine Diseases of the Dog and Cat Volume 2'''(Fifth Edition) ''W.B. Saunders Company''.
+
*Ettinger, S.J. and Feldman, E. C. (2000) '''Textbook of Veterinary Internal Medicine Diseases of the Dog and Cat Volume 2''' (Fifth Edition) ''W.B. Saunders Company''.
*Nelson, R.W. and Couto, C.G. (2009) '''Small Animal Internal Medicine (Fourth Edition)''' ''Mosby Elsevier''.
*Nelson, R.W. and Couto, C.G. (2009) '''Small Animal Internal Medicine (Fourth Edition)''' ''Mosby Elsevier''.
*Marks, S.L. (2003). '''Update on the Diagnosis and Management of Feline Cholangiohepatitis''' ''Waltham Feline Medicine Symposium''.
*Marks, S.L. (2003). '''Update on the Diagnosis and Management of Feline Cholangiohepatitis''' ''Waltham Feline Medicine Symposium''.