No abstract available
MeSH terms
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Abdominal Muscles / diagnostic imaging
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Equipment Design
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Humans
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Liver / diagnostic imaging
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Liver / injuries*
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Needles
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Needlestick Injuries / etiology*
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Needlestick Injuries / prevention & control
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Nerve Block / adverse effects*
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Nerve Block / instrumentation
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Ultrasonography, Interventional