Differential effects of acute and repeated administration of Hypericum perforatum (St John’s wort) on extracellular levels of serotonin, noradrenaline and dopamine in prefrontal cortex, striatum and hippocampus of the rat - Kehr,J.; Yoshitake,S.; Yoshitake,T.; Ogren,S.O. (European Neuropsychomarmacol, 2002)