- NLM Classification (13)
- QT Physiology (1)
- QU Biochemistry (13)
- QZ Pathology (37)
- W Health professions (21)
- WA Public health (17)
- WG Cardiovascular system (121)
- WJ Urogenital system (22)
- WL Nervous system (38)
- WM Psychiatry (14)
- WO Surgery (4)
- WP Gynaecology (3)
- WQ Obstetrics (24)
- WR Dermatology (22)
- WS Pediatrics (19)
- WW Ophthalmology (2)
- WY Nursing (4)
- Y Other (125)
Number of items at this level: 0.
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