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  1. Health & Medicine

    Drug counters severe platelet shortage

    An experimental drug called AMG531 revs up production of platelets in people with severe shortages of these clotting agents.

    By Nathan Seppa
  2. Health & Medicine

    Viagra eases lung pressure in patients

    Viagra eases increased blood pressure in the lungs, a condition that affects about one-third of adults with sickle-cell disease.

    By Nathan Seppa
  3. Health & Medicine

    Taking on a lethal blood cancer

    A drug called bortezomib can induce remission of an aggressive kind of non-Hodgkin's lymphoma.

    By Nathan Seppa
  4. Humans

    Tobacco treaty on its way

    An international tobacco-control treaty will go into effect on Feb.