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T149. Do We Have Evidence for Predictive Biomarkers for Major Depressive Disorder? A Meta-Analysis and Systematic Review of Prospective Studies

During the last century many biological hypotheses have been postulated to underlie the psychopathology of major depressive disorder (MDD). In order to gain insight in the evidence for these hypothesis from patients, a systematical search for longitudinal studies investigating biological factors before the onset of MDD was performed.