No abstract available
Publication types
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Research Support, Non-U.S. Gov't
MeSH terms
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Aged
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Aged, 80 and over
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Female
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Gastroscopy
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Hematoporphyrin Photoradiation*
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Humans
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Laser Therapy*
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Male
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Middle Aged
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Pharyngeal Neoplasms / pathology
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Pharyngeal Neoplasms / therapy*
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Photochemotherapy*
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Stomach Neoplasms / pathology
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Stomach Neoplasms / therapy*