1. Research Center for Endocrinology and Metabolism (G.G., M.E., B.-Å.B., G.J., J.S.), Institute of Neuroscience and Physiology, Göteborg University, SE-413 45 Göteborg, Sweden
2. Sahlgrenska University Hospital, and Research Group for Rehabilitation Medicine (K.S.-S.), Institute of Neuroscience and Physiology, Göteborg University, SE-413 45 Göteborg, Sweden