AgranulocytosisAntithyroid AgentsMethimazoleLevamisoleClozapineDrug ContaminationPropylthiouracilVeterinary DrugsPhenylbutazoneDibenzazepinesChlorpropamideGraves DiseaseHLA-B38 AntigenAntinematodal AgentsDipyroneAcecainideGlutethimideHypochlorous AcidMeprobamateAnemia, AplasticLeukopeniaUnited States Public Health ServiceDrug-Related Side Effects and Adverse ReactionsPancytopeniaChlorpromazineAntipsychotic AgentsPyridonesBone MarrowGranulocyte Colony-Stimulating FactorAmodiaquineNew MexicoBone Marrow ExaminationNeutropeniaHyperthyroidismDrug MonitoringLeukocyte CountPeroxidaseCocaineNeutrophils