heart attacks is due to attract ardrey. it's not due to a narrowed artery. that's not what causes a heart that. it's a cracking artery. so now this is just to get in your head cracked. and also strokes as well. a lot of strokes are caused by cracks in arteries. tim russert, my favorite journalists on television, he died in 2008, and he died of a cracking artery. but what's interesting, massive heart attack at nbc studio. what happened to him was, three weeks before this event, he had a stress test and it was normal. this is a common scenario. because the stress test only tells us whether or not there is a narrowing that is in keeping the blood supply to the market it doesn't tell us if you ardrey is going to crack it open to this point we haven't had a way to do that. now we have been isolating cells from people who have a heart attack in the early minutes throughout san diego. we found that the cells that are coming off in these arteries, in high quantities, compared to people who are healthy are very different looking. and we sequenced these cells. we have