No abstract available
MeSH terms
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Analgesia, Patient-Controlled
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Breast Neoplasms / pathology
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Breast Neoplasms / surgery*
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Female
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Fentanyl / administration & dosage
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Humans
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Lymph Node Excision
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Lymphatic Metastasis
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Mastectomy / adverse effects
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Nerve Block / methods*
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Pain, Postoperative / etiology
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Pain, Postoperative / prevention & control*
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Ultrasonography, Interventional