1. Research Unit for Dietary Studies, Institute of Preventive Medicine, Copenhagen University Hospital, Copenhagen 1357, Denmark
2. Department of Oral Microbiology, School of Dentistry, Faculty of Health Science, University of Copenhagen, Copenhagen 2200, Denmark
3. Department of Cariology and Endodontics, School of Dentistry, Faculty of Health Science, University of Copenhagen, Copenhagen 2200, Denmark
4. Department for Community Dentistry and Graduate Studies, School of Dentistry, Faculty of Health Science, University of Copenhagen, Copenhagen 2200, Denmark
5. Research Centre for Prevention and Health, Glostrup University Hospital, DK-2600 Glostrup, Denmark