No abstract available
MeSH terms
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Adult
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Botulinum Toxins, Type A / therapeutic use*
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Chronic Disease / drug therapy
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Female
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Humans
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Italy
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Male
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Middle Aged
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Migraine Disorders / drug therapy*
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Neuromuscular Agents / therapeutic use*
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Retrospective Studies
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Time Factors
Substances
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Neuromuscular Agents
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Botulinum Toxins, Type A