No abstract available
MeSH terms
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Cardiac Catheterization / instrumentation*
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Catheterization / instrumentation
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Catheterization, Central Venous
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Catheterization, Peripheral* / methods
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Coronary Vessels*
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Electrocardiography / instrumentation*
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Electrodes*
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Electrophysiology / instrumentation
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Feasibility Studies
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Femoral Vein*
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Humans
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Jugular Veins
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Middle Aged
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Prospective Studies
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Subclavian Vein