1. Researcher, Department of Epidemiology, Aarhus University School of Public Health, Aarhus, Denmark; Researcher, Department of Clinical Biochemistry and Immunology, Statens Serum Institute, Copenhagen, Denmark; Researcher, Institute of Public Health and Center for Healthy Aging, University of Copenhagen, Copenhagen, Denmark
2. Associate Professor, Department of Biomedicine, Faculty of Health Sciences and Bioinformatics Research Centre, Aarhus University, Aarhus, Denmark
3. Consultant, Department of Clinical Biochemistry and Immunology, Statens Serum Institute, Copenhagen, Denmark
4. Professor, Department of Clinical Biochemistry and Immunology, Statens Serum Institute, Copenhagen, Denmark
5. Health Policy Analyst [self-employed], Decatur, Georgia
6. Professor, Institute of Public Health and Center for Healthy Aging, University of Copenhagen, Copenhagen, Denmark