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Please read BHL's Acknowledgment of Harmful Content
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  1. By: Mcmahan, M L
    Type: Article
    In: Proceedings of the Biological Society of Washington
    Volume: 92
    Date: 1980
    Page Range: 84--97
    Publication Info: Washington, Biological Society of Washington,
  2. By: Harman, W J - Mcmahan, M L
    Type: Article
    In: Proceedings of the Biological Society of Washington
    Volume: 88
    Date: 1975
    Page Range: 167--178
    Publication Info: Washington, Biological Society of Washington,