it. >> dr. otto says the university is two to five years away from experimentally diagnosing patients in clinical trials but she has no doubt her dogs will get there. >> in the meantime, our most loyal companions continue to awe us in and outside the lab >> i think of my dog. my dog is my best friend. i mean we play, and he provides me with love and comfort. it seems like dogs have really come full circle from when they first sort of co-evolved with right? >> i think dogs have always saved our lives. i think we are just now recognizing the many ways that they can do that. i just have no limit to what they can do to make our lives richer. >> awhen i first heard this anecdote about a dog detecting someone's breast cancer, i was pretty skeptical because there are a lot of anecdotes out there like that, and that's not data. but what you found mind? >> the scientists are working around the clock to continue to collect data so that they can finally, publish and say this is consistent, reliable and people i