I would agree with Dr. Johnson. It is difficult. There are so many other factors involved. We know 13 or 14 different conditions that are very similar to thalidomide, and you can genetically test for some of those, but not all of them. We don't know. Embryonically, we're still unsure how the embryo forms from a single cell to a fully formed organism, so to understand all of these different things that can go wrong is still unknown.
I think common sense is needed, yes. You could look at the probabilities and say they were born in the right era, they may have had some exposure, and they have some conditions that appear to be thalidomide, but that's as far as you can go, that there's a possibility.