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Subjects
- World War I18
- Sexually Transmitted Diseases14
- Brazil13
- Public Health12
- Diabetes Mellitus11
- Immune Sera11
- Military Medicine11
- Heart Diseases8
- California6
- Influenza, Human6
- Nephritis6
- Pneumococcal Infections6
- Tuberculosis6
- Epidemiology5
- Bacterial Typing Techniques4
- Bacterial Vaccines4
- Streptococcal Infections4
- Therapeutics4
- Antibodies3
- Education, Medical3