Intranasal esketamine efficacy as a treatment for treatment-resistant depression, case series - Delgado Marmisa, C; Alvarez Correa, I; Vizcaino Herrezuelo, H; Eguen Recuero, L; Garrido Dobrito, E; Gayubo Moreo, L; Sanz-Aranguez, B; Delgado Tellez, L; Caballero Martinez, L; De Arce Cordon, R; Jimenez-Fernandez, B (European Psychiatry, 2024)