No abstract available
Publication types
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Comment
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Letter
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Randomized Controlled Trial
MeSH terms
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Double-Blind Method
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Humans
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Stomatitis, Aphthous / drug therapy*
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Stomatitis, Aphthous / prevention & control*
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Treatment Outcome
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Vitamin B 12 / administration & dosage
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Vitamin B 12 / analogs & derivatives*
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Vitamin B 12 / pharmacology
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Vitamin B 12 / therapeutic use