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Subjects
- Communicable Disease Control -- history[remove]4
- History, 20th Century4
- History, 19th Century2
- United States2
- Colonialism -- history1
- Construction Industry -- history1
- Cuba1
- Global Health -- history1
- History of Medicine1
- International Cooperation -- history1
- Military Medicine -- history1
- Occupational Health -- history1
- Oceania1
- Panama Canal Zone1
- Pest Control -- history1
- Preventive Medicine -- history1
- Sanitation -- history1
- Tropical Medicine -- history1
- United States. Army. Western Pacific Base Command1
- World Health Organization.1