 couldn't sustain the radiation doses, and they probably had babies die as a result. It's significant that after Hiroshima and Nagasaki, that there was no real study, no real epidemiology done until it was started five years later, meaning the earliest of the deaths and the most severe rate of death would have already been long past. So at five years, they picked it up, and that's the Hibakusha study that's been going on since.