Borgwardt, Line; Guffon, Nathalie; Amraoui, Yasmina; Jones, Simon A.; De Meirleir, Linda; Lund, Allan M.; Gil-Campos, Mercedes; Van den Hout, Johanna M. P.; Tylki-Szymanska, Anna; Geraci, Silvia; Ardigò, Diego; Cattaneo, Federica; Harmatz, Paul; Phillips, Dawn