The process is called a pressure shocking treatment. Once they're fertilized, within a certain period of time they're put into a cylinder and they are exposed to a pressure of so many pounds per square inch. Without getting technical, that allows the three sets of chromosomes to be retained. Normally you would have two, and that third set basically renders them sterile. They can't breed.
On the efficacy of that, each batch is tested and we routinely receive 100% on those. In the data that we submitted to the FDA, we achieved 99.8% as an average. The FDA in its approvals said that we would only have to obtain 95%, but the company wasn't satisfied with that because we realized this was going to be an issue, so we've readily gone beyond that. In fact, new technology has been developed, and it's been discussed at the meetings in Norway recently. Basically we're looking at a vaccine development that would guarantee 100%.