No abstract available
MeSH terms
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Carcinoma, Squamous Cell / diagnosis
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Carcinoma, Squamous Cell / surgery*
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Dissection / methods*
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Endoscopy / methods*
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Esophageal Neoplasms / surgery*
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Humans
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Hypopharyngeal Neoplasms / diagnosis
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Hypopharyngeal Neoplasms / surgery*
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Male
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Middle Aged
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Narrow Band Imaging
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Neoplasms, Second Primary / diagnosis
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Neoplasms, Second Primary / surgery*
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Pyriform Sinus / pathology
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Pyriform Sinus / surgery*