1 Department of Evaluation and Treatment of Pain, FHU INOVPAIN, CHU Timone, AP-HM, Marseille, France. Electronic address: sylvain.redon@ap-hm.fr.
2 Department of Evaluation and Treatment of Pain, FHU INOVPAIN, CHU Timone, AP-HM, Marseille, France.
3 Neurology, HIA Sainte-Anne, Toulon, France.
4 Department of Evaluation and Treatment of Pain, FHU INOVPAIN, CHU Timone, AP-HM, Marseille, France; CHU de Clermont-Ferrand, Inserm U-1107, Clermont-Ferrand, France.