No abstract available
MeSH terms
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Databases, Factual*
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Denmark / epidemiology
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Digestive System Surgical Procedures / statistics & numerical data
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Esophageal Neoplasms / epidemiology*
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Esophageal Neoplasms / surgery
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Humans
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Quality Assurance, Health Care
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Registries*
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Stomach Neoplasms / epidemiology*
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Stomach Neoplasms / surgery