Absolutely pleased with the knowledge and support that Dyan Merkel of Haus Merkel has for German Shepherds. She helps educate all people (even if they bought from other breeders). She proved that our vets did not do properly positioned x-rays & were not capable of evaluating them. Her knowledgeable veterinarian x-rayed our dog again. She not only did not have hip dyspasia but had OFA good hips!!!! Our vets said that she needed replacement surgery ($10,000). Without Dyan's help we may have spent the money or had to have her put to sleep according to these Quacks!