1. Opthalmic anatomy;Samuelson,1999
2. Qualitative tear film disease;Moore;Vet Clin North Am Small Anim Pract,1990
3. Estimation of lacrimal level and testing methods on normal beagles;Saito;Vet Opthalmol,2001
4. Clinical evaluation of a new Schirmer tear test in the dog;Wyman;Vet Comp Ophthalmol,1995
5. A comparative study of Schirmer tear test strips in dogs;Hirsh;Vet Comp Ophthalmol,1995