This is a retraction of: Expression of Concern on: Oxidative Stress and Inflammation in First-Episode Psychosis: A Systematic Review and Meta-analysis, Schizophrenia Bulletin, 2022, sbac129, https://doi.org/10.1093/schbul/sbac129
Due to an editorial error, this Expression of Concern was mistakenly associated with the wrong article by some of the same authors. The editors apologize to the authors and readers.
