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Subjects
- United States10,011
- Physicians3,619
- Military Personnel2,341
- Nurses2,066
- Acquired Immunodeficiency Syndrome -- prevention & control1,999
- Medicine1,631
- American Civil War1,520
- Nonprescription Drugs1,179
- Hospitals, Military1,176
- Child1,162
- World War II1,138
- United States. Army1,050
- Condoms981
- Public Health980
- Homeopathy948
- Veterans935
- New York922
- Safe Sex844
- Hygiene809
- California789
