The impact of onabotulinumtoxinA on severe headache days : PREEMPT 56-week pooled analysis
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Matharu, Manjit (Queen Square, London, WC1N3BG UK)
;
Halker, Rashmi (East Mayo Blvd, Phoenix, AZ 85054 USA) ;
Pozo-Rosich, Patricia (Hospital Universitari Vall d'Hebron) ;
DeGryse, Ronald (Allergan plc, 2525 Dupont Dr, Irvine, CA USA) ;
Manack Adams, Aubrey (Allergan plc, 2525 Dupont Dr, Irvine, CA USA) ;
Aurora, Sheena K. (Pasteur Dr. Room A301 MC 5325, Stanford, CA USA) ;
Universitat Autònoma de Barcelona