I guess what I would say as a clinician who has to face patients who have these questions is, we believe here that we have been following the patients with the highest uranium exposures. We can document it. We can still document it 20 years later. Just as a quick sidebar for members who might be wondering why the heck we haven't taken all the uranium out of our patients, it's because the surgeons think it's too dangerous to do so.
We have had to monitor these veterans of ours who were exposed, prospectively here now for 20 years, and watch them carefully. I think most people would agree that veterans in this group certainly are candidates for most likely being the most highly exposed people we can follow. We are happy that we have not seen any what we would call uranium-related health effects, with the exception of the excretion of abnormally high uraniums in their urine with the isotopic signature, the proof that it's depleted.