No abstract available
MeSH terms
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Anesthesia, Epidural
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Back Pain / diagnosis*
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Back Pain / therapy*
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Contrast Media / administration & dosage
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Cortisone / administration & dosage
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Fluoroscopy
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Humans
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Injections / methods*
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Injections, Spinal
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Intervertebral Disc
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Nerve Block
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Prospective Studies
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Spinal Canal