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Start Over Collections Images from the History of Medicine (IHM) ✖Remove constraint Collections: Images from the History of Medicine (IHM) Subjects Mass Screening ✖Remove constraint Subjects: Mass Screening Titles [Men being tested for spotted fever by scientists from the Rocky Mountain Laboratory in Hamilton, Montana] ✖Remove constraint Titles: [Men being tested for spotted fever by scientists from the Rocky Mountain Laboratory in Hamilton, Montana]

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  • [Men being tested for spotted fever by scientists from the Rocky Mountain Laboratory in Hamilton, Montana]1