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  1. Health & Medicine

    Some HIV patients getting transplants

    Organ transplants succeed in some HIV-infected people, spurring further research into this practice.

    By Nathan Seppa
  2. Health & Medicine

    Anti-HIV mutation poses hepatitis risk

    A genetic mutation that protects people from AIDS may also make them susceptible to hepatitis C.

    By Nathan Seppa
  3. Astronomy

    Mining the Sky

    A proposed national virtual observatory, a mammoth computer database integrating spectra, images, and other information covering the entire sky, could usher in a new age of discovery in astronomy.

    By Ron Cowen
  4. Physics

    Lasers nudge into nuclear medicine

    Using a tabletop laser, researchers produced a medically useful isotope usually made in warehouse-size particle accelerators called cyclotrons.