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GP coauthors/coeditors: J Manuel Colmenar, Jose Ignacio Hidalgo Perez, Andoni Elola, Javier Del Ser, Miren Nekane Bilbao, Cristina Perfecto, Enrique Alexandre, Nuno Lourenco, Jose-Luis Fernandez-Villacanas Martin, Maria Jesus Segovia-Vargas, Carlos Bousono-Calzon,