Canine Hip Dysplasia by Tom Phillips, D.V.M., MS, PhD. 

Hip Dysplasia in Growing Dogs: Recommendations for Breeding and  Nutrition by Dr. Cindy L. Shmon

Hip Dysplasia- Baker Institute of Animal Health

Comparing PennHIP and OFA 

Progesterone Testing

A Successful Breeder's Best Friend by Brian E. Greenfield, D.V.M. 

Early Spay-Neuter Considerations for the Canine Athlete - One Veterinarian's Opinion by Chris Zink DVM, PhD, DACVP

At What Age Should I Spay or Neuter My Dog or Cat? What Are The Advantages And Disadvantages Of Neutering My Pet? Revisiting the Idea of Early-Age Neutering by Ron Hines, DVM PhD

Long-Term Health Risks and Benefits Associated with Spay / Neuter in Dogs by Laura J. Sanborn, M.S. 

Storage Disease-Information

Cerebellar Ataxia- Video