1. School of Public Health, Division of Environmental Health Science, University of California, Berkeley, California, USA
2. Department of Preventive Medicine, Keck School of Medicine, University of Southern California, Los Angeles, California, USA
3. Center for Research in Environmental Epidemiology (CREAL), Institut Municipal d’Investigació Mèdica (IMIM), Barcelona, Spain
4. Sonoma Technology Inc., Petaluma, California, USA
5. Department of Epidemiology and Public Health, School of Medicine, Imperial College, London, UK