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. 2023 Mar 26;26(5):331–339. doi: 10.1093/ijnp/pyad014

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© The Author(s) 2023. Published by Oxford University Press on behalf of CINP.

This is an Open Access article distributed under the terms of the Creative Commons Attribution License (https://creativecommons.org/licenses/by/4.0/), which permits unrestricted reuse, distribution, and reproduction in any medium, provided the original work is properly cited.

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Figure 3. — Trajectory of Columbia-Suicide Severity Rating Scale-Ideation Severity Subscale (CSSRS-ISS) and Montgomery-Åsberg Depression Rating Scale (MADRS) item 10 scores among patients with treatment-resistant depression (TRD) having prominent suicidal ideation, stratified by duration of current episode and failure numbers of antidepressants. G, group (ketamine vs midazolam); T, time. Note: The 2 sets of P values refer to day 5 and day 14, respectively.