From the *Department of Infectious Diseases, Aarhus University Hospital, Aarhus, Denmark; †Research Unit for General Practice, Aarhus University, Aarhus, Denmark; ‡Centre for Applied Health Services Research and Technology Assessment, University of Southern Denmark, Odense, Denmark; §Department of Infectious Disease Epidemiology, National Institute of Public Health and the Environment (RIVM), Utrecht, The Netherlands; and the ∥National Research Center for Environment and Health, Institute of Health Economics and Health Care Management, Neuherberg, Germany