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Please read BHL's Acknowledgment of Harmful Content
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  1. By: Zinsser, Hans, - Young, Stewart W.
    Edition: Ed. 2, rev.
    Publication info: New York, MacMillan, 1918
    Holding Institution: University of Toronto - Gerstein Science Information Centre
    Subjects: Contagion and contagious diseases  Immunity  Serumtherapy  
  2. By: Kolmer, John A.
    Edition: Ed. 2.
    Publication info: Philadelphia, Saunders, 1917
    Holding Institution: University of Toronto - Gerstein Science Information Centre
    Subjects: Contagion and contagious diseases  Immunity  Serumtherapy