Thank you, Dr. Duncan. As has been identified before, I think it's very important to note that the death followed a procedure that included the use of a stent. With balloon angioplasty, where a spring form is not lodged permanently in the vein, there has not been such adverse effects. So I think that's important to identify, because both procedures are available and one is more risky than the other, as has been identified.
I think the fundamental question we all face here is the question of the nature of the evidence. If you ask the question of colleagues of yours who are physicians and researchers, they will tell you the evidence available for CCSVI, including the protocols for imaging, is in the early stages. That is why a number of medical associations, provincial bodies, and the Alberta Health Services Board have made the decision to not make available what is still an experimental treatment, in their view.