No abstract available
MeSH terms
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Analgesics
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Humans
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Morphine
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Nephrolithotomy, Percutaneous* / adverse effects
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Nerve Block*
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Pain, Postoperative / etiology
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Pain, Postoperative / prevention & control
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Pilot Projects
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Prospective Studies
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Randomized Controlled Trials as Topic
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Ultrasonography, Interventional