1. Vertebral scale system to measure canine heart size in radiographs;Buchanan;J Am Vet Med Assoc,1995
2. Analysis of the cardiac silhouette in dorsoventral radiographs from dogs with heart disease;Hamlin;J Am Vet Med Assoc,1968
3. Echocardiography;Kienle,1998
4. Allometric scaling of M-mode cardiac measurements in normal adult dogs;Cornell;J Vet Intern Med,2004
5. Physical examination of the heart and circulation;Braunwald,2005