AgranulocytosisLeukopeniaAntithyroid AgentsMethimazoleLevamisoleClozapineDrug ContaminationPropylthiouracilVeterinary DrugsPhenylbutazoneDibenzazepinesChlorpropamideGraves DiseaseHLA-B38 AntigenAntinematodal AgentsAcecainideDipyroneGlutethimideHypochlorous AcidMeprobamateAnemia, AplasticLeukocyte CountPancytopeniaBone MarrowGranulocyte Colony-Stimulating FactorUnited States Public Health ServiceNeutropeniaDrug-Related Side Effects and Adverse ReactionsChlorpromazineNew MexicoPyridonesAmodiaquineBone Marrow ExaminationAntipsychotic AgentsHyperthyroidismDrug MonitoringPeroxidaseNeutrophilsCocaine