Specific relationship between prefrontal neuronal N-acetylaspartate and activation of the working memory cortical network in schizophrenia. - Bertolino,A.; Esposito,G.; Callicott,J.H.; Mattay,V.S.; Van Horn,J.D.; Frank,J.A.; Berman,K.F.; Weinberger,D.R. (Am J Psychiatry, 2000)