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Venezuela
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8
Health Expenditures
2
Public Health
2
Sanitation
2
United States
2
Bacterial Infections
1
Bronchial Diseases
1
Communicable Disease Control
1
Legislation, Food
1
Materia Medica
1
Mosquito Control
1
Nurses
1
Plants, Medicinal
1
Spirochaeta -- pathogenicity
1
Spirochaetales Infections
1