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Subjects
- United States4
- Administrative Personnel2
- History of Medicine2
- Libraries, Medical2
- National Library of Medicine (U.S.)2
- Animal Welfare1
- Animals, Laboratory1
- Anniversaries and Special Events1
- Biomedical Research1
- Europe1
- Historiography1
- Hospitals -- history1
- Incunabula as Topic1
- Information Storage and Retrieval1
- Information Systems1
- Lindberg, Donald A. B., 1933-1
- MEDLARS1
- Photography1
- Physicians1
- Poliovirus Vaccines1