Clinical usefulness and economic implications of continuation/maintenance electroconvulsive therapy in a Spanish National Health System public hospital: A case series - Rodriguez-Jimenez, R; Bagney, A; Torio, I; Caballero, M; Ruiz, P; Rivas, FDJ; Jimenez-Arriero, MA (Revista De Psiquiatria Y Salud Mental, 2015)