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Subjects
- Radiotherapy1
- Radium -- adverse effects1
- Radon -- adverse effects1
- Rain1
- Rats2
- Rats -- metabolism1
- Rats, Long-Evans -- metabolism1
- Rats, Wistar -- metabolism1
- Records8
- Records -- standards1
- Recreation1
- Red Cross1
- Reference Standards2
- Reflex, Pupillary1
- Refrigeration1
- Refuse Disposal -- methods2
- Regional Health Planning5
- Regional Health Planning -- economics1
- Regional Health Planning -- organization & administration1
- Registries1