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Please read BHL's Acknowledgment of Harmful Content
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  1. By: Drugg, W S
    Type: Article
    In: Proceedings of the Biological Society of Washington
    Volume: 77
    Date: 1964
    Page Range: 237--240
    Publication Info: Washington, Biological Society of Washington,
  2. By: Drugg, W S
    Type: Article
    In: Proceedings of the Biological Society of Washington
    Volume: 83
    Date: 1970
    Page Range: 115--121
    Publication Info: Washington, Biological Society of Washington,