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Subjects
- United States[remove]178
- Libraries, Medical119
- National Library of Medicine (U.S.)58
- Medicine31
- Library Services15
- Army Medical Library (U.S.)13
- Military Medicine13
- Physicians12
- Armed Forces Medical Library (U.S.)9
- Book Classification9
- Billings, John S. (John Shaw), 1838-1913.8
- Information Systems8
- Periodicals as Topic8
- Anniversaries and Special Events7
- Book Selection7
- History of Medicine7
- Information Storage and Retrieval7
- Librarians7
- Abstracting and Indexing as Topic6
- Information Services6