No abstract available
MeSH terms
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Aged
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Anesthetics, Local / administration & dosage
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Anesthetics, Local / pharmacokinetics
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Breast Neoplasms / surgery
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Consciousness Monitors
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Female
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Humans
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Mastectomy / methods*
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Nerve Block / methods*
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Paraspinal Muscles*
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Thoracic Vertebrae / diagnostic imaging*
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Ultrasonography, Interventional