1. Department of Epidemiology and Center for Occupational and Environmental Health, School of Public Health and
2. Center for Health Policy Research, School of Public Health, University of California, Los Angeles, California, USA
3. Northern California Cancer Center, Berkeley, California, USA
4. Environmental Health Investigations Branch, California Department of Public Health, Richmond, California, USA
5. Department of Medicine, University of California, San Francisco, California, USA
6. Division of Environmental Health Sciences, School of Public Health, University of California, Berkeley, California, USA