Dr. Lambert is great with our 4 dogs, well 3 now that one had to be put to sleep last Saturday. And Dr. Lambert did everything he possibly could, including discuss our dogs case with 2 specialists. But all of his X-Rays, Bloodwork, and stool samples came back normal. So what it boiled down to is a possible hidden Cancer or Tumor, or Sig was just feeling his age. Everyone said he outlived the normal life span for an Australian Shepherd, and it was obvious he had an exceptional life with us, which is what we give all of our precious dogs.