I don't think we define our lives by our illness. We define ourselves by how we live.

You have to understand, prior to the hurricane, gasoline stocks were already very low. We were already in a precarious situation.

With or without cognitive impairment, patients improved in stroke rehabilitation, and they improved at a similar rate, regardless of whether cognitive impairment was present, at least as measured by the Mini-Mental State Exam.

It's a new version of the butterfly effect. A hurricane in the Gulf of Mexico can lead to higher prices around the world. That's how vulnerable oil markets are today to events outside of our control. And it shows how little room there is for errors.

At least half of the patients had a cognitive impairment when they entered rehabilitation.

But given the low level of inventories, strong global demand and lack of a cushion, we believe the market still has and will continue to have an upside risk.