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rCMRglu correlations with clinical variables. The scatterplots show the zero-order correlations between rCMRglu values extracted from the dorsal anterior cingulate/midcingulate cortex for combat-unexposed (Ux) co-twins and a.) their own Michigan Alcoholism Screening Test scores, b.) their combat-exposed (Ex) twins’ Michigan alcoholism Screening Test scores; c.) their Ex twins’ combat severity scores, and d.) their Ex twins’ lifetime Clinician-Administered PTSD Scale scores.
