Secondly, on the Retail operating profit decline, if you ex the Omnicare and, I think you said, the tax reform investment is down 5% -- I know you say it's because break-open generic is less of an offset, but I still think that's very low. Can you give us some more detail on what's happening there so we put it in our models going forward? Because it just seems a bigger decline that I would think. Thanks.