No abstract available
MeSH terms
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Adult
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Aged
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Aged, 80 and over
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Biopsy, Fine-Needle / instrumentation*
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Biopsy, Fine-Needle / methods
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Endosonography
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Equipment Design
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Female
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Humans
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Male
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Mediastinal Neoplasms / pathology
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Middle Aged
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Needles*
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Pancreatic Neoplasms / pathology
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Stomach Neoplasms / pathology