Fig. 3.
From: The impact of onabotulinumtoxinA on severe headache days: PREEMPT 56-week pooled analysis
Pooled number of severe headache days, among nonresponders. *P ≤ 0.001. † P < 0.05
Fig. 3. | The Journal of Headache and Pain
From: The impact of onabotulinumtoxinA on severe headache days: PREEMPT 56-week pooled analysis
Pooled number of severe headache days, among nonresponders. *P ≤ 0.001. † P < 0.05