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Subjects
- Laboratory Personnel[remove]30
- Laboratories9
- Schools, Medical9
- African Americans7
- Plague -- prevention & control4
- United States. Public Health Service.4
- Communicable Disease Control3
- San Francisco3
- Dental Equipment2
- Dissection2
- Military Personnel2
- African Continental Ancestry Group1
- Röntgen, Wilhelm Conrad, 1845-1923.1
- Students, Medical1
- United States1
- Women1