[1] Univ Autonoma Barcelona, Headache & Pain Res Grp, Inst Recerca VHIR, E-08193 Barcelona, Spain
[2] Leiden Univ, Dept Neurol, Med Ctr, Leiden, Netherlands
[3] Wellcome Trust Sanger Inst, Dept Human Genet, Cambridge, England
[4] Oslo Univ Hosp, Dept Neurol, Oslo, Norway
[5] Oslo Univ Hosp, FORMI, Oslo, Norway
[6] Univ Oslo, Oslo, Norway
[7] Univ Autonoma Barcelona, Neurovasc Res Lab, Inst Recerca VHIR, E-08193 Barcelona, Spain
[8] Univ Autonoma Barcelona, Pediat Neurol Res Grp, Inst Recerca VHIR, E-08193 Barcelona, Spain
[9] Univ Barcelona, Fac Biol, Dept Genet, Barcelona, Spain
[10] Hosp Univ Vall dHebron, Dept Neurol, Barcelona, Spain
[11] Broad Inst MIT & Harvard, Program Med & Populat Genet, Cambridge, MA USA