1. Department of Biomedical and Clinical Sciences Linköping University Linköping Sweden
2. Department of Medical Sciences Örebro University Örebro Sweden
3. Institute of Global Food Security, School of Biological Sciences Queen's University Belfast Belfast UK
4. Department of Gastroenterology Linköping Sweden
5. Department of Medical Sciences, Clinical Chemistry Uppsala University, Uppsala, Sweden and Diagnostics Development Uppsala Sweden
6. Department of Medical Sciences, Gastroenterology Research Group Uppsala University Uppsala Sweden