Like millions of others, I have become an expert at analyzing these statistics.

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Ms. Sobhany, the disc jockey, says she has become an expert at quickly wiping down one iPad while the other handles the music-playing.

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Well certainly one strategy is to become an expert at productivity.

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I've become an expert at choosing wines by the glass.

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It has become an expert at ferreting out hard-to-reach patients with obscure and potentially fatal genetic diseases--namely lysosomal storage disorders, a group of 40 genetic diseases marked by a deficient enzyme.

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Mr. Staiman, who had by that point already become something of an expert after riding every day, said that many people had issues at first.

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Of course, if I had decided years earlier to just become an expert in health policy, or whatever, I could have started in quickly at the bottom of the media totem pole and risen more or less swiftly toward the top, earning some sort of income instead of piling up debt.

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