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Proportion of responders and remitters after ketamine or placebo infusion by Montgomery-Asberg Depression Rating Scale (MADRS) score. A, Proportion of responders (50% improvement on MADRS) from 40 minutes to day 14 postinfusion (n=18). B, Proportion of remitters (MADRS score <10) from 40 minutes to day 14 postinfusion (n=18).
