N-acetyl-aspartate levels in the dorsolateral prefrontal cortex in the early years of schizophrenia are inversely related to disease duration - Molina, V.; Sánchez, J.; Reig, S.; Sanz, J.; Benito, C.; Santamarta, C.; Pascau, J.; Sarramea, F.; Gispert, J.D.; Misiego, J.M.; Palomo, T.; Desco, M. (Schizophrenia Research, 2005)