1. Ocular diagnostic ultrasonography;Rubin;J Am Vet Med Assoc,1968
2. Ultrasonography of the eye and orbit;Eisenberg;Vet Clin North Am Small Anim Pract,1985
3. Two-dimensional real-time ocular ultrasonography in the dog;Hager;Vet Radiol,1987
4. Ultrasonography of the eye;Williams;The Compendium,1996
5. Ocular ultrasonography. Veterinary Diagnostic Ultrasound;Mattoon,1995