This morning Sarepta Therapeutics put out a press release detailing the results of a drug that actually seems to help boys with muscular dystrophy walk farther on a six minute walk test.

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The reason to be optimistic is simple: Both the Wyeth and PTC drugs failed to show a benefit in much larger studies on the same six minute walk test on which eteplirsen showed a six-minute benefit.

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"It is easy to talk the populist line in a campaign, but the true test is the ability to walk it, " he said.

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To test this idea he trained his ants to walk from their nests to a feeding station through a ten-metre-long channel.

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When patients were taking Ampyra, they were able to do better on a test that timed how long it took them to walk 25 feet.

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Every walk to class was an opportunity for me to study for that test.

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Italy's Olympic 50km race walk champion Alex Schwazer is also out of the Games after failing a drugs test.

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Nowhere else can you browse a selection of more than 82, 000 paper books, walk over to Area-e, our new digital hub, where you test drive a variety of e-Reading devices, and then search for your next favorite book in our e-Bookstore.

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"Pregnant women are recommended to get a haemoglobin test at least once in every trimester of their pregnancy but it is inconvenient for a women to walk to the nearest primary healthcare centre that could more than 5km away, " he said.

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