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Subjects
- Radius -- pathology1
- Radius -- surgery1
- Railroads2
- Records2
- Rectal Diseases -- therapy1
- Reflex -- physiology1
- Reflex, Abnormal1
- Refuse Disposal -- legislation & jurisprudence1
- Regional Blood Flow1
- Rehabilitation Centers1
- Religion3
- Religion and Sex2
- Reproduction2
- Reproductive Health1
- Research Personnel2
- Respiratory Mechanics1
- Respiratory Physiological Phenomena1
- Respiratory Tract Diseases -- pathology1
- Resuscitation -- methods1
- Retinal Artery Occlusion1