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Library of Congress Subject Areas (7754)
- A General Works (65)
  - AC Collections. Series. Collected works (20)
  - AI Indexes (General) (35)
  - AM Museums (General). Collectors and collecting (General) (1)
  - AS Academies and learned societies (General) (11)
- B Philosophy. Psychology. Religion (224)
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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 (79)
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- L Education (192)
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    - LC5201 Education extension. Adult education. Continuing education (2)
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- Q Science (335)
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- R Medicine (6896)
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  - RA Public aspects of medicine (351)
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    - RA1001 Forensic Medicine. Medical jurisprudence. Legal medicine (3)
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    - RC0254 Neoplasms. Tumors. Oncology (including Cancer) (18)
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  - RH Basic Medical Sciences (228)
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  - RP Paramedical (847)
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- S Agriculture (7)
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- Z Bibliography. Library Science. Information Resources (8)
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