1. Role of survey radiography in diagnosing canine cardiac disease;Lamb CR;Compend Contin Educ Pr Vet,2002
2. Canine and Feline Cardiovascular System
3. Vertebral scale system to measure canine heart size in radiographs;Buchanan JW;J Am Vet Med Assoc,1995
4. Use of breed-specific ranges for the vertebral heart scale as an aid to the radiographic diagnosis of cardiac disease in dogs
5. Radiographic evaluation of the cardiac silhouette in clinically normal poodles through the vertebral heart size (VHS) method;Pinto A;Braz J Vet Res and Anim Sci,2004