| Headache Classification Committee of the International Headache Society IHS | Headache diary: Keeping a diary can help your doctor help you |
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| : The McGraw-Hill Companies; 2015 | The international classification of headache disorders, 3rd edition |
In: Harrison's Principles of Internal Medicine.
| Cluster headache: Epidemiology, clinical features, and diagnosis | Cluster headache: Treatment and prognosis |
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| Tension-type headache in adults: Pathophysiology, clinical features, and diagnosis | Migraine and other primary headache disorders |