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Subjects
- United States9,805
- Physicians3,568
- Military Personnel2,305
- Nurses2,066
- Acquired Immunodeficiency Syndrome -- prevention & control1,999
- American Civil War1,523
- Medicine1,514
- Hospitals, Military1,172
- Nonprescription Drugs1,159
- World War II1,138
- Child1,136
- United States. Army1,036
- Condoms981
- Public Health953
- Veterans932
- Homeopathy904
- New York895
- Safe Sex844
- Regional Medical Programs781
- California779
