"Actually, as cancers develop in an individual patient, an individual cancer cell might be different - a little bit different - from the cell that's sitting right next to it. And so there's heterogeneity, we call it. It makes the problem that much harder."

Next Quote

If you have a patient in a doctor's office who's just been told they have terminal cancer but there's this operation they could perform right now that might save their lives. ... They have a 90 percent chance of surviving the operation — if you tell them that, they respond one way. If you tell them ... that they have a 10 percent chance of being killed by the operation, they are about three times less likely to have the operation.

— Michael Lewis