1. Danish Cancer Society Research Center, Copenhagen, Denmark
2. Department of Public Health, University of Copenhagen, Copenhagen, Denmark
3. Department of Environmental Science, Aarhus University, Roskilde, Denmark
4. Section of Epidemiology, Department of Public Health, Aarhus University, Aarhus, Denmark
5. Department of Cardiology, Centre for Cardiovascular Research, Aalborg Hospital, Aarhus University Hospital, Aalborg, Denmark