Poster 411 The Impact of OnabotulinumtoxinA on Severe Headache Days: PREEMPT 24-Week Pooled Analysis.
Stanford University, Stanford, CA, United States.
Sheena
S
Aurora
Rashmi
R
Halker
Patricia
P
Pozo-Rosich
Ronald
R
DeGryse
Aubrey
A
Manack Adams
Manjit
M
Matharu