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Subjects
- Libraries, Medical23
- China17
- DNA16
- Health Education16
- National Library of Medicine (U.S.). Reference Services Division.16
- Librarians13
- Library Materials13
- Tuberculosis, Pulmonary -- prevention & control11
- African Americans10
- National Library of Medicine (U.S.)10
- RNA10
- Library Technical Services8
- Catalogs, Library7
- United States7
- Amino Acids5
- RNA, Messenger5
- Rogers, Frank B. (Frank Bradway), 1914-19875
- Shannon, James A. (James Augustine), 1904-1994.5
- BCG Vaccine4
- Genetic Code4