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Scatterplot of change in 24-item Hamilton Depression Rating Scale (24h post-infusion score minus pre-infusion score) vs. plasma (2R,6R)-HNK (ng/ml)*
*Higher post-infusion plasma (2R,6R)-HNK correlated inversely with improvement in depressive symptoms from pre- to 24h post-infusion (Spearman rank correlation r=0.37, p=0.009).
