References
- Guilford , WG , Center , SA , Strombeck , DR , Williams , DA and Meyer , DJ . 1996 . Strombeckʼns Small Animal Gastroenterology , 3rd Edtn , Philadelphia : WB Saunders .
- Jones , BR . 2002 . Companion animal health and disease: a perspective 1952–2002 . New Zealand Veterinary Journal , 50 ( 3 ) : 110 – 114 .