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- Children126
- Public health122
- World War, 1939-194585
- Prevention84
- Health and hygiene83
- Health education82
- Sexually transmitted diseases79
- School children70
- Medicine, Preventive66
- Health literacy63
- Infectious/Inflammatory54
- Cardiovascular52
- Nutrition48
- Sick persons48
- Syphilis43
- Patent medicines41
- Nurses38
- Physicians36
- Respiratory33
- Eating & drinking32