Freeman, D J Solid-phase extraction and high-performance liquid chromatographic analysis of clozapine and norclozapine in human plasma. [electronic resource] - Therapeutic drug monitoring Dec 1996 - 688-92 p. digital Publication Type: Clinical Trial; Comparative Study; Journal Article ISSN: 0163-4356 Standard No.: 10.1097/00007691-199612000-00010 doi Subjects--Topical Terms: Antipsychotic Agents--bloodChromatography, High Pressure Liquid--methodsClozapine--analogs & derivativesDrug InteractionsDrug MonitoringHumansRisperidone--bloodVerapamil--blood