- NLM Classification (36)
- QT Physiology (7)
- QU Biochemistry (3)
- QZ Pathology (404)
- W Health professions (148)
- WA Public health (17)
- WG Cardiovascular system (121)
- WI Digestive system (10)
- WJ Urogenital system (22)
- WM Psychiatry (3)
- WO Surgery (4)
- WP Gynaecology (3)
- WQ Obstetrics (1)
- WR Dermatology (22)
- WS Pediatrics (28)
- WW Ophthalmology (1)
- WY Nursing (4)
- Y Other (123)
Number of items at this level: 0.
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