1Department of Neurobiology, Care Sciences and Society, Karolinska Institutet, Stockholm, and
2Faculty of Health Science, Oslo and Akershus University College, Oslo, and
3Department of Neuroscience, Norwegian University of Science and Technology, and Department of Clinical Services, St. Olav University Hospital, Trondheim, Norway
4University of Southern Denmark, Odense, and
5University College, Sjaelland, Naestved, Denmark
6Department of Neuroscience, Uppsala University, Uppsala, Sweden