We're aware that the gold standard, an RCT, is difficult to do in such situations, but the situation is as you mentioned. We know that soldiers follow orders, and when they're told, they do; and their families follow orders.
My father served and was in Gagetown and was subjected, as Dr. Ritchie mentioned, to the issue of Agent Orange in testing that was done in Canada. Likewise, we lived in Pakistan and we were told we'd take malaria medication and this was the medication we would take, end of story.
Just to go on more of a scientific bent, we're always looking for concrete data to try to say how it is, and it's very tough to come up with concrete data when we're dealing with neuropsychiatric disorders. We're talking about liver toxicity, brain stem toxicity, limbic toxicity.
Dr. Passey, you mentioned blood tests. I'm wondering if you could explain some more about that and just enlighten the committee on some of those tests that may be evident, if they are or not, and how experimental they are.