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  1. Health & Medicine

    Nerves in heart show damage in Parkinson’s

    Some patients with Parkinson's disease also have destruction of nerve terminals in the heart that affects blood pressure.

    By Nathan Seppa
  2. Materials Science

    Titanium makes move toward mainstream

    Inventors of a new process for producing titanium claim that their method can reduce the metal's cost to one-third its current price.

    By Jessica Gorman

  3. 19268

    Your cover article on using magnetic fields to map and possibly treat brain disorders (“Snap, crackle, and feel good?” SN: 9/23/00, p. 204: Snap, Crackle, and Feel Good?) contrasted sharply with this article a few pages earlier about magnetic fields inducing cells to develop tumors.