1. Department of Public Health Sciences, University of California, Davis, California, USA
2. Department of Epidemiology, University of North Carolina, Chapel Hill, North Carolina, USA
3. Laboratory of Genetic Ecotoxicology, Institute of Experimental Medicine, AS CR and Health Institute of Central Bohemia, Prague, Czech Republic
4. Department of Pediatrics, University of California, Davis, California, USA
5. Department of Epidemiology and Biostatistics, University of California, San Francisco, California, USA
6. Institute of Hygiene and Environmental Medicine, University of Giessen, Giessen, Germany
7. Health Institute Usti n.L., Branch Teplice, Czech Republic
8. Department of Statistics, University of California, Davis, California, USA
9. Department of Rheumatology, Allergy and Clinical Immunology, University of California, Davis, California, USA