Predictive factors of the response to treatment with onabotulinumtoxina in refractory migraine

1. Pagola, I.
2. Esteve-Belloch, P.
3. Palma, J.A.
4. Luquin, M.R.
5. Riverol, M.
6. Martínez-Vila, E.
7. Sieira, P.I.