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Course of depression and anxiety symptoms over 230 minutes in patients with treatment-resistant MDD and with or without high suicidal ideation who received ketamine (n=33). High SSI was defined as >3. Low SSI was defined as <4. Abbreviations: BDI: Beck Depression Inventory; HDRS: Hamilton Depression Rating Scale; MADRS: Montgomery-Asberg Depression Rating Scale; SSI: Scale for Suicide Ideation.
