It's a bit confusing, isn't it. Even Dr. McDiarmid, who I admire enormously and is a leading world expert, sort of had slips of the tongue in that respect today. She was saying depleted uranium and uranium. You have to be very careful. I get confused.
The reason we talk so much about uranium studies when we speak of investigating depleted uranium effects is that they are similar. The effects are similar, identical from a toxicological point of view, which Dr. McDiarmid highlighted. It is that effect that concerns their group more. The radiological effect is less of a concern to them.
The studies that were made on humans with uranium date back many years and are on very large groups of uranium workers, people in the industry. This is why we talk so often about epidemiological studies with uranium, because they are the studies that are available in large numbers. Studies specifically on depleted uranium are not used extensively and have not been used for as long a period. That's why the studies are limited, but if you find the effects of uranium, you can extrapolate that to depleted uranium.