1. Centre for Research in Environmental Epidemiology (CREAL); Barcelona Spain
2. Hospital del Mar Research Institute (IMIM); Barcelona Spain
3. CIBER Epidemiologia y Salud Pública (CIBERESP); Barcelona Spain
4. Division of Environmental Epidemiology; Institute for Risk Assessment Sciences; Utrecht University; Utrecht the Netherlands
5. Department of Nutrition and Carolina Population Center; University of North Carolina; Chapel Hill NC USA
6. McLaughlin Centre for Population Health Risk Assessment; Institute of Population Health; University of Ottawa; Ottawa ON Canada
7. Pompeu Fabra University; Barcelona Spain