No abstract available
MeSH terms
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Benchmarking*
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Cardiology / methods
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Cardiology / standards*
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Child
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Down Syndrome / mortality*
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Echocardiography / statistics & numerical data
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Heart Defects, Congenital / diagnostic imaging*
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Heart Defects, Congenital / mortality*
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Heart Defects, Congenital / surgery
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Humans
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Incidence
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Mass Screening / statistics & numerical data
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Prevalence
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Risk Factors
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United Kingdom / epidemiology