This absence of cost incentives is especially problematic -- paradoxically -- because of the technological progress that has occurred and will occur in medicine.

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Climate change has occurred and will occur in the United States.

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The problem is that, so far, most instruction has occurred and continues to occur within universities.

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Not Invented Here-ism: Most academic and commercial BPM activity occurred, and continues to occur, outside the US, mostly in Europe.

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The Congressional Budget Office said a short recession would occur if the tax hikes and spending cuts occurred.

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So some of that has occurred -- not nearly enough of it has occurred -- more of it should occur now.

WHITEHOUSE: Press Briefing