I have said that we need clarity with respect to whether or not you can get consent—because that's what we're talking about—for the research use of fresh and frozen embryos. It does need to be addressed, because there are references to the timing of withdrawal having to do with the thawing of the frozen embryos. This suggests that you're imagining that you're going to be thawing embryos.
Given that there is inconsistency with respect to that view, and given that Canada's first two stem cell lines come from fresh and not previously frozen embryos, this is something that needs to be really clear. My understanding is that it needs to be consistent with the 2002 guidelines, which presume that they are cryopreserved—something the regulations seem to presume as well—but it will be contested, and it needs to be clear.