Heinrich-Heine University of Düsseldorf - Social and Environmental Medicine, Centre for Health and Society, University of Basel - Swiss Tropical and Public Health Institute, Boston University - School of Public Health, University of Basel - Swiss Tropical and Public Health Institute, St George’s University London, University of Toronto, Emory University, Imperial College London, Utrecht University, University of Basel - Swiss Tropical and Public Health Institute, Sonoma Technology, University of California, Berkeley, National and Kapodistrian University of Athens, University of Montreal, University of Washington - Department of Biostatistics, Health Effects Institute, Boston, Health Effects Institute, Boston and Heinrich Heine University Dusseldorf