N-[(11)C]methylspiperone PET, in contrast to [(11)C]raclopride, fails to detect D-2 receptor occupancy by an atypical neuroleptic. - Hagberg,G.; Gefvert,O.; Bergstrom,M.; Wieselgren,I.M.; Lindstrom,L.; Wiesel,F.A.; Langstrom,B. (Psychiatry Res Neuroimaging, 1998)