There are a lot of studies like that study. Let me put it this way. In the Canadian national breast cancer screening study, the women who had their cancers detected in the mammogram arm that were smaller and less likely to be node-positive had better survival, but the number of deaths was the same. You can't use that to....
Early detection works. It finds them when they're smaller and more likely to be node-negative. The survival of the mammogram-detected cancers was two years longer than the survival of the palpable cancers, but unless you have clear data that shows there's a difference in death—