We file a provisional patent application in the U.S., partly because, as Scott said, there are times when professors come into our office and say that they're going to be presenting this in the next day, and so we have to file something quickly. Plus, it's just a very cost-effective way.
So we file it originally in the U.S. as a provisional application, which isn't reviewed for 12 months, and then we have 12 months to file a regular filing. Usually we'll try to file that either as a PCT, which allows us to then declare in a country 18 months after that.
In terms of—