Look up Terrierman's Daily Dose and Pedigree Dogs Exposed - both the blog and the documentary. The AKC and the KC - along with people who breed dogs to aesthetic standards are ruining dogs and causing a lot of heartache and pain.
We lost a doberman to VWD two years ago and were aghast to find out what percentage of the dogs carry the gene. When researching the genetic disease rates for purebred dogs, do so with a strong stomach.