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Subjects
- Poliomyelitis[remove]15
- Adult2
- Adolescent1
- Anniversaries and Special Events1
- Arthritis, Rheumatoid1
- California1
- Child1
- Chorea1
- Chronic Disease1
- Disabled Persons1
- Epidemiologic Studies1
- Foot -- surgery1
- Hepatitis, Viral, Human1
- Leg -- surgery1
- Mediterranean Region1
- Middle East1
- Middle East Expedition of the "Virus Commission"1
- Military Personnel1
- New York1
- Ocular Motility Disorders1