1. Prague Psychiatric CenterDepartment of Biochemistry and Brain PathophysiologyÚstavní 91181 03Prague 8BohniceCzech Republic
2. Institute of Chemical Technology PragueFaculty of Chemical Technology, Department of Organic TechnologyPragueCzech Republic
3. Charles University in PragueThird Faculty of Medicine, Department of PharmacologyPragueCzech Republic
4. Charles University in PragueThird Faculty of Medicine, Department of NormalPathological and Clinical PhysiologyPragueCzech Republic