Cancer Is a Very Variable Patient Population

We have a highly variable patient population. We're moving today from defining disease by symptoms to understanding cancer is hundreds of different cancers defined by the heterogeneity of abnormal cell growth. And it actually begins then to move us from not only personalizing medicine to being predictive. So we're going to be able to say that old Steve's going to get osteoporosis or I'm going to get Alzheimer's or you're going to get breast cancer and something. Once you're predictive, you can ultimately move into prevention. When you're at prevention, you're treating the well as opposed to treating the sick.