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- History15,699
- Medicine15,499
- Diseases14,216
- Surgery7,128
- Public health5,784
- Nursing4,791
- therapy4,781
- methods4,479
- Cancer4,388
- Diagnosis4,153
- diagnosis3,718
- history3,418
- Research3,173
- Physiology3,075
- Treatment3,062
- Physicians2,946
- physiology2,714
- Medical care2,672
- Study and teaching2,570
- Nervous system2,462