Characterization of the sigma ligand panamesine, a potential antipsychotic, by immune response in patients with schizophrenia and by sleep-EEG changes in normal controls - Frieboes,R.-M.; Murck,H.; Antoijevic,I.; Kraus,T.; Hinze-Selch,D.; Pollmächer,T.; Steiger,A. (Psychopharmacology, 1999)