- NLM Classification (22)
- QT Physiology (1)
- QU Biochemistry (1)
- QZ Pathology (403)
- W Health professions (23)
- WA Public health (25)
- WG Cardiovascular system (121)
- WI Digestive system (32)
- WJ Urogenital system (16)
- WL Nervous system (38)
- WM Psychiatry (12)
- WO Surgery (83)
- WP Gynaecology (1)
- WQ Obstetrics (24)
- WR Dermatology (22)
- WS Pediatrics (14)
- WW Ophthalmology (9)
- WY Nursing (4)
- Y Other (123)
Number of items at this level: 0.
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