Depressive Disorder, Treatment-ResistantElectroconvulsive TherapyDrug ResistanceAntidepressive AgentsAntipsychotic AgentsTreatment OutcomeAnemia, RefractoryRefractory Period, ElectrophysiologicalAnemia, Refractory, with Excess of BlastsDrug Resistance, NeoplasmSalvage TherapyDrug Resistance, MicrobialAnti-Bacterial AgentsMicrobial Sensitivity TestsRecurrenceAntineoplastic AgentsDrug Administration Schedule