[1] Univ Copenhagen, Psychiat Univ Ctr, Ctr Neuropsychiat Schizophrenia Res, Glostrup, Denmark
[2] Psychiat Univ Ctr Glostrup, Ctr Neuropsychiat Schizophrenia Res, Glostrup, Denmark
[3] Psychiat Univ Ctr Bispebjerg, Dept Psychiat E, Copenhagen, Denmark
[4] Univ Hosp, Rigshosp, Neurobiol Res Unit, Copenhagen, Denmark
[5] Bispebjerg Hosp, Dept Nucl Med, Copenhagen, Denmark
[6] H Lundbeck & Co AS, Valby, Denmark