Revue Neurologique 2021 Sep;177(7):753-759 G Demarquay, J Mawet, E Guégan-Massardier, S de Gaalon, A Donnet, P Giraud, M Lantéri-Minet, C Lucas, X Moisset, C Roos, D Valade, A Ducros Abstract The French Headache Society proposes updated French guidelines for the