No abstract available
MeSH terms
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Aged
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Botulinum Toxins, Type A / therapeutic use
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Case-Control Studies
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Comorbidity
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Female
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Headache Disorders / diagnosis*
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Headache Disorders / drug therapy
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Headache Disorders / epidemiology*
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Humans
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Incidence
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Male
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Middle Aged
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Neck Muscles / drug effects
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Neck Muscles / physiopathology*
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Neuromuscular Agents / therapeutic use
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Torticollis / diagnosis*
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Torticollis / drug therapy
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Torticollis / epidemiology*
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Treatment Outcome
Substances
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Neuromuscular Agents
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Botulinum Toxins, Type A