1. Diagnosis of cardiac lesions by contrast echocardiography;Bonagura;J. Am. Vet. Vied. Assoc.,1983
2. M-mode echocardiography: Basic principles;Bonagura;Vet. Clin. North Am. [Small Anim. Pract.],1983
3. Echocardiography features of dilated coronary sinus in a dog with persistent left cranial vena cava;Jacobs;J. Am. Vet. Med. Assoc.,1983
4. Dynamic subaortic stenosis in a dog with congenital heart disease;Sisson;J. Am. Anim. Hosp. Assoc.,1984
5. Echocardiographic assessment of congenital aortic stenosis in dogs;Wingfield;J. Am. Vet. Med. Assoc.,1983