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Subjects
- Railroads2
- Ranidae -- physiology1
- Rape2
- Records6
- Records as Topic3
- Rectal Fistula1
- Refractive Errors1
- Rehabilitation1
- Rehabilitation Centers2
- Reimbursement Mechanisms7
- Relief Work12
- Relief Work -- legislation & jurisprudence1
- Relief Work -- organization & administration1
- Religion1
- Religion and Medicine3
- Religion and Science1
- Remuneration7
- Reproduction1
- Reproduction, Asexual1
- Respiration1