They did an excellent study to show that the... they can only look at childhood cancer because that was the impacted, to see the effects of vaccination. But there's so much primary cancer of the liver in Taiwan. It's… in the 50, 40-60 age range, it's the most second most common cause of death — not death from cancer, but death in… in Taiwanese males, and Chinese in Taiwan. But they did show a significant two-thirds drop in the incidence of cancer of the liver in Taiwan. There was a similar study done in Korea with… with the, in the same direction. And I believe there's been another study since then. Okay, so if those things are substantiated, that means there’s - other than theoretical prediction - there's actual evidence, that it’s a cancer vaccine. Well, we suspected that, we had no way to predict that would be the case, the data of course, is what really counts, and I have… have been trying to advocate, since then, the use, the development of vaccines against cancer. Now, the second cancer vaccine was just introduced last year by Merck, and the data looked very good on that. And that's... it will be in use, you know, they kind of got into a little bit of trouble — they kind of pushed it a little, a little harder they pushed, you know, there was that kind of back — but I think in the long-run, it will be widely used. And what I'm trying to advocate now, what I'm trying to tell people, you know, talk to people at Fox Chase here, is to find other infectious agents that cause cancers, and give, and use preventative measures. You know, we know a lot about preventing bacteria and viruses. Vaccines is, you know, probably the best solution, but there are others also. So there are a whole bunch of cancers that are caused by… by viruses.