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Start Over You searched for: Collections Medicine in the Americas, 1610-1920 Remove constraint Collections: Medicine in the Americas, 1610-1920 Subjects Diagnosis, Differential Remove constraint Subjects: Diagnosis, Differential Subjects Diphtheria -- diagnosis Remove constraint Subjects: Diphtheria -- diagnosis

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2. The differential diagnosis between diphtheria and other diphtheroid (pseudo-membranous) inflammations of the upper air-passages can only be positively established in doubtful cases by the presence of the Klebs-Loeffler bacillus