1. Department of Clinical Physiology and Nuclear Medicine, Center for Functional and Diagnostic Imaging and Research, Hvidovre Hospital, University of Copenhagen, Hvidovre, Denmark
2. Gastroenterology Unit, Medical Division, Hvidovre Hospital, University of Copenhagen, Hvidovre, Denmark
3. Department of Cardiology, Hvidovre Hospital, University of Copenhagen, Hvidovre, Denmark