 And Sue scans from a PET and scans from an MRI and then, or excuse me, scans from a CT and an MRI and then from a PET scanner. On the CT MRI, you couldn't see anything. On the others, we could pick out the anomalies. And it's just that vivid and so critical to make accurate diagnosis as well as monitor treatment. So we shouldn't, there's some people who are too sick to travel. I had three friends who died in the hospital last year of cancer