Glenthoj BY, Mackeprang T, Svarer C, Rasmussen H, Pinborg LH, Friberg L, Baaré W, Hemmingsen R, Videbaek C. Frontal dopamine D(2/3) receptor binding in drug-naive first-episode schizophrenic patients correlates with positive psychotic symptoms and gender. Biol Psychiatry. 2006 Sep 15 ; 60(6):621-9. Pubmed Abstract