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Subjects
- United States9,847
- Physicians3,582
- Military Personnel2,312
- Nurses2,065
- Acquired Immunodeficiency Syndrome -- prevention & control1,999
- Medicine1,546
- American Civil War1,515
- Hospitals, Military1,174
- Nonprescription Drugs1,160
- World War II1,138
- Child1,135
- United States. Army1,042
- Condoms981
- Public Health959
- Veterans932
- Homeopathy909
- New York891
- Safe Sex844
- Hygiene783
- California781
