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Figure 1. Percentage of patients with relief (no pain or mild pain) 60 or 120 minutes after dosing with sumatriptan hemisulfate nasal spray (5, 10, or 20 mg) or placebo. Asterisk indicates P<.05 vs placebo; dagger, P<.05 vs 5 mg of sumatriptan hemisulfate nasal spray; and double dagger, P<.05 vs 10 mg of sumatriptan hemisulfate nasal spray.