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Library of Congress Subject Areas (7039)
- A General Works (56)
  - AC Collections. Series. Collected works (20)
  - AI Indexes (General) (26)
  - AM Museums (General). Collectors and collecting (General) (1)
  - AS Academies and learned societies (General) (11)
- B Philosophy. Psychology. Religion (222)
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- C Auxiliary Sciences of History (1)
  - C Auxiliary sciences of history (General) (1)
- D History General and Old World (1)
  - D History (General) (1)
- G Geography. Anthropology. Recreation (4)
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- H Social Sciences (72)
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- L Education (187)
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    - LC5201 Education extension. Adult education. Continuing education (2)
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- Q Science (308)
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- R Medicine (6229)
  - R Medicine (General) (1386)
  - RA Public aspects of medicine (300)
    - RA0421 Public health. Hygiene. Preventive Medicine (227)
    - RA1001 Forensic Medicine. Medical jurisprudence. Legal medicine (2)
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    - RC0254 Neoplasms. Tumors. Oncology (including Cancer) (16)
    - RC0321 Neuroscience. Biological psychiatry. Neuropsychiatry (16)
    - RC1200 Sports Medicine (5)
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  - RZ Other systems of medicine (117)
  - RH Basic Medical Sciences (211)
    - RH1001 Biochemistry & Genetics (185)
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    - RN1001 Public Health (264)
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    - RN1007 MPH (30)
  - RP Paramedical (772)
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    - RP105 Biotechnology (221)
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- S Agriculture (7)
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- T Technology (3)
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  - V Naval Science (General) (1)
- Z Bibliography. Library Science. Information Resources (7)
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