1 Institute for Global Health (ISGlobal), 08003 Barcelona, Spain; Department of Experimental and Health Sciences, Universitat Pompeu Fabra (UPF), Barcelona, Spain; CIBER Epidemiología y Salud Pública (CIBERESP), Madrid, Spain.
2 Department of Environmental and Radiological Health Sciences, Colorado State University, Fort Collins, CO, USA.
3 Swiss Tropical and Public Health (TPH) Institute, Basel, Switzerland; University of Basel, Basel, Switzerland.
4 Institute for Risk Assessment Sciences, Utrecht University, Utrecht, Netherlands.
5 Institute for Global Health (ISGlobal), 08003 Barcelona, Spain; Department of Experimental and Health Sciences, Universitat Pompeu Fabra (UPF), Barcelona, Spain; CIBER Epidemiología y Salud Pública (CIBERESP), Madrid, Spain. Electronic address: mark.nieuwenhuijsen@isglobal.org.