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Table 4 Provocation studies. Cluster headache and migraine have several pharmacological triggers in common but different methodological approach have been applied in attack induction

From: Debate: Are cluster headache and migraine distinct headache disorders?

  1. Blue indicates induction rate, green indicates median time to onset, and red indicates study design. RCT Randomized clinical trial, ECHA Episodic cluster headache in active phase, ECHR Episodic cluster headache in remission phase, CCH Chronic cluster headache, and NI Not Investigated
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The Journal of Headache and Pain

ISSN: 1129-2377

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