Youngren KD, Inglis FM, Pivirotto PJ, Jedema HP, Bradberry CW, Goldman-Rakic PS, Roth RH, Moghaddam B. Clozapine preferentially increases dopamine release in the rhesus monkey prefrontal cortex compared with the caudate nucleus. Neuropsychopharmacology. 1999 May 1 ; 20(5):403-12. Pubmed Abstract