1. Department of Biology and Biological Engineering, Chalmers University of Technology, Gothenburg, Sweden
2. Department of Molecular Sciences, Swedish University of Agricultural Sciences, Uppsala, Sweden
3. Swedish NMR Centre, University of Gothenburg, Gothenburg, Sweden
4. Department of Laboratory Medicine, Karolinska Institutet, Stockholm, Sweden
5. Department of Medical Epidemiology and Biostatistics, Karolinska Institutet, Stockholm, Sweden
6. Institute of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden