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Subjects
- Boston2
- Brain Neoplasms -- surgery1
- Bronchopneumonia1
- Chicago1
- Endocarditis, Subacute Bacterial1
- Heart Diseases1
- Hospitals, Military1
- Influenza, Human -- complications2
- Military Personnel1
- Neurotic Disorders1
- New York1
- Pericardial Effusion1
- Pericarditis1
- Plague -- complications1
- Pneumonia1
- Pneumonia -- pathology1
- Texas1