Yes, we're aware of those. Actually, the one in The Lancet was done in New Zealand by someone who is a close colleague of mine. Here's the issue: they can't get the same e-cigarette back because they can't tell, even if it's the same name brand, whether they're getting back the same product. That's one of the challenges.
To answer your question, yes, there are other studies that are looking at whether it can be equivalent to other nicotine replacements or not. That's a line of research that we should do. There's one study out of Italy. There's a colleague of mine in Switzerland who's doing a similar study. There's another group in South Africa that's trying to do the study. There's a huge investment by the FDA for these centres. There's a group out in Buffalo and a group out in Virginia. We are collaborating with the Virginia group as well to see if we can do some collaborative studies, because they can do studies in the U.S. on e-cigarettes that contain nicotine, whereas we cannot. So there may be some experiments—