- NLM Classification (83)
- QT Physiology (1)
- QU Biochemistry (2)
- QZ Pathology (401)
- W Health professions (122)
- WA Public health (2)
- WG Cardiovascular system (121)
- WJ Urogenital system (41)
- WK Endocrine system (14)
- WL Nervous system (37)
- WM Psychiatry (6)
- WO Surgery (83)
- WP Gynaecology (1)
- WQ Obstetrics (24)
- WR Dermatology (22)
- WS Pediatrics (28)
- WW Ophthalmology (2)
- WY Nursing (4)
- Y Other (123)
Number of items at this level: 0.
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