1. Division of Cardiovascular Medicine, Department of Medical and Health Sciences; Linköping University; Linköping Sweden
2. Center for Medical Image Science and Visualization (CMIV); Linköping University; Linköping Sweden
3. Department of Clinical Physiology; UHL, County Council of Östergötland; Linköping Sweden
4. Department of Medicine; University of California San Francisco; San Francisco CA USA
5. Division of Media and Information Technology, Department of Science and Technology/Swedish e-Science Research Centre (SeRC); Linköping University; Linköping Sweden