1. Department of Anaesthesiology and Intensive Care; Västmanlands sjukhus Köping; Köping Sweden
2. Department of Medical Sciences; Clinical Physiology; Uppsala University; Uppsala Sweden
3. Department of Radiology; Västmanlands sjukhus Västerås; Västerås Sweden
4. Uppsala Clinical Research Center; Uppsala University; Uppsala Sweden
5. Centre for Clinical Research; Västmanlands sjukhus Västerås; Västerås Sweden