1. The Brain and Muscle Energy Group; Department of Anatomy; Institute of Basic Medical Sciences, University of Oslo; Oslo Norway
2. The Brain and Muscle Energy Group; Department of Oral Biology; University of Oslo; Oslo Norway
3. Department of Neuroscience and Pharmacology; University of Copenhagen; Copenhagen Denmark
4. Institute for Surgical Research, Oslo University Hospital; Oslo Norway
5. Center for Heart Failure Research, University of Oslo; Oslo Norway
6. Center for Healthy Aging; Faculty of Health Sciences; University of Copenhagen; Copenhagen Denmark