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Subjects
- African Americans[remove]86
- National Library of Medicine (U.S.). Reference Services Division.29
- Microfilming17
- Library Materials13
- Libraries, Medical9
- Nurses9
- National Library of Medicine (U.S.)7
- Laboratory Personnel6
- Library Automation6
- National Library of Medicine (U.S.). Index Section.6
- Child4
- Catalogs, Library3
- Aged2
- Laboratories2
- Librarians2
- Malaria2
- Physicians2
- United States. Public Health Service.2
- Anemia, Sickle Cell1
- Animals, Laboratory1