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. Author manuscript; available in PMC: 2010 Aug 1.
Published in final edited form as: Toxicon. 2009 Jan 22;54(5):624–627. doi: 10.1016/j.toxicon.2009.01.009

Table 1.

Distribution of the types of migraine headache

Type of headache
Type of migraine N Exploding Imploding or ocular Unsure
Episodic 27 52% 48% -
Chronic 55 40% 56% 4%
All patients 82 44% 54% 2%