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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Esophagoscopy / methods*
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Female
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Fiber Optic Technology
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Gastroscopy / methods*
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Head and Neck Neoplasms / diagnosis
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Head and Neck Neoplasms / surgery
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Humans
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Intubation / methods*
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Middle Aged
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Nasopharynx