Research Catalog

  • Passive fetal heart rate monitoring apparatus and method with enhanced fetal heart beat discrimination [microform] / inventors, Stephen A. Zahorian, David L. Livingston, Robert A. Pretlow III.

    • Text
    • [Washington, DC : National Aeronautics and Space Administration ; Springfield, Va. : National Technical Information Service, distributor, 1994]
    • 1994

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