No abstract available
MeSH terms
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Administration, Topical
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Aged
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Anesthesia, Local*
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Anesthetics, Local / administration & dosage
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Anesthetics, Local / adverse effects*
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Benzocaine / administration & dosage
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Benzocaine / adverse effects*
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Conscious Sedation*
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Duodenoscopy*
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Esophagoscopy*
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Gastroscopy*
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Humans
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Male
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Methemoglobinemia / chemically induced*
Substances
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Anesthetics, Local
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Benzocaine