1. Le stenosi esofagee cicatriziali del cane: Approccio terapeutico;Cheli;Veterinaria,1987
2. Esophageal annular strictures dilation by means of perendoscopic electro- resection in the dog;Gualtieri,1993
3. Gastrointestinal polyps in small animais;Gualtieri;European Journal of Comparative Gastroenterology,1996
4. Oesophageal squamous cell carcinoma in two cats;Gualtieri;J Small Anim Pract,1999
5. Diseases of swallowing;Guilford,1996