1. Clinic for Gastroenterology, Hepatology and InfectiologyHeinrich‐Heine‐UniversityDüsseldorfGermany
2. Neuroscience Research UnitHôpital Saint‐Luc, University of MontrealQuebecCanada
3. C. & O. Vogt Institut for Brain ResearchHeinrich‐Heine‐UniversityDüsseldorfGermany
4. Cardion AGErkrathGermany
5. Institut for Internal Medicine, Research CenterJülichGermany