Subjects
- United States218
- World War I144
- Hygiene122
- Hospitals, Military62
- France55
- Military Medicine48
- Military Personnel46
- Physiological Phenomena43
- Physicians42
- New York41
- Medicine37
- Nonprescription Drugs36
- Child34
- Sex Education34
- Sexual Behavior34
- New York City32
- Brazil31
- Diet30
- Health Behavior30
- Pharmaceutical Preparations30
