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- World War, 1939-1945 68
- Nutrition 41
- Pregnancy 28
- Sexually transmitted diseases 26
- Prenatal care 25
- Patent medicines 19
- World War, 1914-1918 18
- Food Conservation 13
- Infants—Care 12
- Nurses and Nursing 12
- AIDS (Disease) 11
- Motion pictures 11
- Safety education 10
- Syphilis 8
- War wounds 8
- Children 7
- Condoms 7
- Food 7
- Sexually transmitted disease 7
- Alcoholism 6