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- History15,865
- Medicine15,514
- Diseases14,389
- Surgery7,388
- Public health6,186
- Nursing4,966
- therapy4,822
- Cancer4,598
- methods4,497
- Diagnosis4,200
- diagnosis3,727
- Physicians3,504
- Research3,466
- history3,422
- Treatment3,144
- Physiology3,041
- Medical care2,791
- Hospitals2,764
- Study and teaching2,716
- physiology2,713