1. Department of Cellular and Molecular Medicine, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen N, Denmark
2. Department of Biomedical Sciences and NNF Center of Basic Metabolic Research, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen N, Denmark
3. Department of Veterinary and Animal Sciences, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
4. Section of Biostatistics, Department of Public Health, Faculty of Health Sciences, University of Copenhagen, Copenhagen K, Denmark
5. Department of Gastroenterology and Hepatology, University Hospital Zurich, Zurich, Switzerland
6. Department of Science and Environment, Roskilde University, Roskilde, Denmark
7. Department of Odontology, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen N, Denmark