Subjects
- London1
- Maryland1
- Massachusetts -- epidemiology1
- Meningitis -- epidemiology1
- Meningitis, Bacterial1
- Meningitis, Meningococcal -- epidemiology1
- Mexico1
- Military Personnel1
- New Jersey1
- North Carolina1
- Nose Diseases -- surgery1
- Plague -- epidemiology1
- Pneumonia -- epidemiology1
- Public Health1
- Russia (Pre-1917) -- epidemiology1
- Russia. Armii︠a︡.1
- Sanitary Engineering1
- Sanitation1
- Topography, Medical1
- Typhoid Fever -- etiology1