This is a joint degree from the Autonomous University of Madrid, the University of Barcelona, the University of Cantabria, the University of Extremadura, the University of the Balearic Islands, the Jaume I University, the University of Murcia, the University of Oviedo, the University of the Basque Country/ Euskal Herriko Unibertsitatea, the University of Salamanca, the University of Santiago de Compostela, the University of Valencia, the University of Valladolid and the University of Vigo, under the relevant agreement setting the mutual responsibilities.