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Showing articles 0 to 2 of 2 Filter Applied: headache,severe (Click to remove) Behavior During a Cluster Headache Lancet 342:723-725, Blau,J.N., 1993 Episodic Paroxysmal Hemicrania:Two New Cases and A Literature Review Neurol 42:964-966, Newman,L.C.,et al, 1992 Showing articles 0 to 2 of 2