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Volume 361 Issue 6412, 11 February 1993

Opinion

  • The Institute of Medicine in the United States has described a chilling tale of how the military used service people in tests of the effectiveness of poison gases against humans.

    Opinion

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  • President Bill Clinton deserves a longer respite from his most severe critics than he is getting.

    Opinion
  • The plight of IBM and General Motors should be a lesson to successful technical companies everywhere.

    Opinion
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News

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Correspondence

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Commentary

  • What is it that defines an animal? The definition provided here, made on the basis of developmental biology, suggests methods for resolving phylogenetic problems.

    • J. M. W. Slack
    • P. W. H. Holland
    • C. F. Graham
    Commentary
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News & Views

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Scientific Correspondence

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Book Review

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Briefing

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Book Review

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Art and Science

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Letter

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Erratum

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Correction

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Product Review

  • A sensitive, high-throughput fluorescent DNA analyser has been developed that uses sheathflows of buffer around each element in an array of gel capillaries.

    • Hideki Kambara
    • Satoshi Takahashi
    Product Review
  • Research tools for the molecular biologist featured this week include paints for the detection of human chromosomes 11 and 12, a kit for isolating differentially expressed genes, gel chambers, gels and other paraphernalia.

    • Diane Gershon
    Product Review
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