Electroconvulsive therapy in a patient with resistant paranoid schizophrenia treated with clozapine - S. Castelao-Almodóvar; A. Pérez-Balaguer; T. Ponte; B. Estevez Peña; Y.D. Corres Fuentes; E. Gil-Benito; E.M. Suárez Del Río; L. Gayubo-Moreo; B. Sanz-Aranguez (European Psychiatry, 2021)