RecruitingDevice studyMagnetic Seizure Therapy in Bipolar Depression (MST-BpD) and Treatment Resistant Depression (MST-TRD)The purpose of this study is to compare the efficacy and side effects magnetic seizure therapy (MST) and electroconvulsive therapy (ECT) in Bipolar Depression (MST-BpD) and Treatment Resistant Depression (MST-TRD).