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Please read BHL's Acknowledgment of Harmful Content
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  1. By: Ewing, R M
    Type: Article
    In: Proceedings of the Biological Society of Washington
    Volume: 97
    Date: 1984
    Page Range: 792--800
    Publication Info: Washington, Biological Society of Washington,
  2. By: Ewing, R M
    Type: Article
    In: Proceedings of the Biological Society of Washington
    Volume: 95
    Date: 1982
    Page Range: 232--237
    Publication Info: Washington, Biological Society of Washington,
  3. By: Ewing, R M - Dauer, D M
    Type: Article
    In: Proceedings of the Biological Society of Washington
    Volume: 94
    Date: 1981
    Page Range: 163--168
    Publication Info: Washington, Biological Society of Washington,