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- Medicine16,969
- History15,294
- Diseases14,584
- Surgery7,549
- Public health6,158
- Nursing4,976
- therapy4,831
- Cancer4,649
- methods4,509
- Diagnosis4,240
- diagnosis3,733
- Physicians3,545
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- history3,291
- Physiology3,225
- Treatment3,174
- Hospitals2,775
- Study and teaching2,753
- Medical care2,738
- physiology2,721