No abstract available
MeSH terms
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Brain / pathology
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Brain Ischemia / chemically induced*
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Carbolines / adverse effects*
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Coitus
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Headache / etiology
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Humans
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Magnetic Resonance Imaging
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Male
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Middle Aged
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Paresis / etiology
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Piperazines / adverse effects*
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Purines / adverse effects
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Recurrence
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Sildenafil Citrate
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Smoking / adverse effects
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Stroke / chemically induced*
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Sulfones / adverse effects*
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Tadalafil
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Vasodilator Agents / adverse effects*
Substances
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Carbolines
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Piperazines
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Purines
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Sulfones
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Vasodilator Agents
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Tadalafil
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Sildenafil Citrate