The CIRCLE team comprises a diverse group of investigators from four premier research institutions: the University of California, Berkeley, The University of California, San Francisco, Yale University, and Stanford University.  Team members have specialties in a wide variety of disciplines including epidemiology, analytical chemistry, community outreach, exposure biology, clinical oncology, statistics, research translation, and pathology.  The CIRCLE research team aims to bring all of that expertise to bear on identifying the causes of childhood leukemia and preventing future cases of the disease.