| Headache diary: Keeping a diary can help your doctor help you | Evaluation of headache in adults |
|---|---|
| Cluster headache: Treatment and prognosis | The international classification of headache disorders, 3rd edition |
Headache Classification Committee of the International Headache Society IHS.
1| National Institute of Neurological Disorders and Stroke | |
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| Cluster headache: Epidemiology, clinical features, and diagnosis | In: Harrison's Principles of Internal Medicine |
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