Also, I work at a big medical school, JHU, they are using dogs to sniff cancer, and it is very effective.
I was reading about that a while back and I think that it can be really effective. It would make those who have misgivings about AI see an alternative.
It is kind of ironic that a doctor does not know your sick or not, yet can tell you. Your dog knows, and it does try to tell you, but few people are "dog whisperers."