1. Inherited multifocal serous retinal detachments in Great Pyrenees dogs (Abstract);Grahn;Proceedings of the World Veterinary Congress,1995
2. Grahn BH Philibert H Houston DM et al. Retinopathy of Great Pyrenees (Abstract) 28th Annual Meeting of the American College of Veterinary Ophthalmologists 1997 28 93
3. Grahn BH Cullen CL Philibert H. Multifocal retinopathy of Great Pyrenees, fluorescein angiography and electron microscopy during the time of lesion development (Abstract) 29th Annual Meeting of the American College of Veterinary Ophthalmologists 1998 29 32
4. Multifocal retinopathy of Great Pyrenees;Grahn;Veterinary Ophthalmology,1998
5. Diagnostic ophthalmology: Great Pyrenees retinopathy;Grahn;Canadian Veterinary Journal,1999