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Reversion from chronic migraine (CM) to episodic migraine (EM) based on the monthly headache day count at Months 1, 2, and 3 criteria. (A) Proportion of patients in the full analysis set (FAS) population who reverted from CM to EM. (B) Percentage change in the monthly average number of headache days from baseline to Month 3 in patients who reverted from CM to EM. Missing data were not imputed.
