http://www.dogcancerkit.com Many dog lovers wonder why their veterinarian did not catch their dog's cancer earlier. How could the cancer have just appeared overnight? Why didn't the vet see it before. In this video, dog cancer veterinarians Dr. Demian Dressler and Dr. Susan Ettinger discuss this common concern and provide answers. They also discuss things you can do with healthy dogs so that you wont ask this question later.