Plummer C, MacKay E, Gelatt K (2006). “Comparison of the effects of topical administration of a fixed combination of dorzolamide-timolol to monotherapy with timolol or dorzolamide on IOP, pupil size, and heart rate in glaucomatous dogs”. Vet Ophthalmol9 (4): 245–9. doi:10.1111/j.1463-5224.2006.00469.x. PMID16771760.
Plummer C, MacKay E, Gelatt K (2006). “Comparison of the effects of topical administration of a fixed combination of dorzolamide-timolol to monotherapy with timolol or dorzolamide on IOP, pupil size, and heart rate in glaucomatous dogs”. Vet Ophthalmol9 (4): 245–9. doi:10.1111/j.1463-5224.2006.00469.x. PMID16771760.