There is little doubt that American consumers have proven they are far more tenacious than their melancholic European peers.

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As I wrote last year, Isentress was a very difficult drug to develop, requiring more than a decade of tenacious advocacy on the part of a Merck scientist named Daria Hazuda.

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Entrepreneurs, while known for being tenacious and steadfast about pursuing their goals and passions, may be more pragmatic and easy going than they are generally given credit for.

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There is a more dyspeptic view of the affair, though, one that in no way diminishes the tenacious cleverness of the winners.

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