No abstract available
Publication types
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Comparative Study
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Editorial
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Comment
MeSH terms
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Echocardiography / economics
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Echocardiography / statistics & numerical data*
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Heart Diseases / diagnosis*
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Heart Diseases / diagnostic imaging
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Humans
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Italy
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Radiography, Thoracic / statistics & numerical data
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Radionuclide Imaging / statistics & numerical data
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Tomography, X-Ray Computed / statistics & numerical data
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United States
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Unnecessary Procedures*