I have heard about this. So very cool! Hopefully, this methid of detection continues to gain popularity. Far less scary to have a cute dog detect cancer over the prep involved in convential testing, and well of course, a much safer process. I would have to believe more people would be willing to be screened saving many more lives and lower the incidence of individuals  having to go through so much suffering with late detection of cancers. Which, often leads them to turn to harsh drug interventions that make their quality of life in their remaining days absolutely miserable.