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Library of Congress Subject Areas (158)
- L Education (10)
  - L Education (General) (9)
  - LB Theory and practice of education (1)
- Q Science (16)
  - Q Science (General) (14)
  - QR Microbiology (2)
- R Medicine (132)
  - R Medicine (General) (112)
  - RA Public aspects of medicine (6)
  - RC Internal medicine (3)
  - RG Gynecology and obstetrics (3)
  - RS Pharmacy and materia medica (3)
  - RT Nursing (5)