ORTHOPEDIC FOUNDATION FOR ANIMALS (OFA) http://www.offa.org

CANINE EYE REGISTRATION FOUNDATION CERF, DNA     http://www.vmdb.org

ONTARIO VETERINARY COLLEGE (OVC)   http://www.ovc.uoguelph.ca

VOLHARD     http://www.volhard.com

HEALTHGENE     http://www.healthgene.com

THE MERCK VETERINARY MANUAL     http://www.merckvetmanual.com/mvm/index.jsp

GERMAN SHEPHERD DOG BREED BETTERMENT REGISTRY     http://www.gsdbbr.org