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Abstract #1407

Effect of Chronic Opioid Abuse on the NAA Concentration in the Human Frontal Lobe as Detected by 1 H MRS

R. Haselhorst, K. Drsteler, K. Scheffler, D. Bilecen, J. Seelig, D. Ladewig, R. Stohler and E. Seifritz, University of Basel, Switzerland; University of Zrich, Switzerland and University of Freiburg, Germany.