About the Authors

Sanna Neselius

sanna.neselius@vgregion.se

Affiliations Department of Orthopaedics, Sahlgrenska University Hospital, Gothenburg, Sweden, Institute for Clinical Sciences, the Sahlgrenska Academy at the University of Gothenburg, Gothenburg, Sweden

Helena Brisby

Affiliations Department of Orthopaedics, Sahlgrenska University Hospital, Gothenburg, Sweden, Institute for Clinical Sciences, the Sahlgrenska Academy at the University of Gothenburg, Gothenburg, Sweden

Jan Marcusson

Affiliations Geriatric Section, University Hospital in Linköping, Linköping, Sweden, Institution of Clinical and Experimental Medicine, Linköping University, Linköping, Sweden

Henrik Zetterberg

Affiliations Clinical Neurochemistry Laboratory, Sahlgrenska University Hospital, Mölndal, Sweden, Institute of Neuroscience and Physiology, Department of Psychiatry and Neurochemistry, the Sahlgrenska Academy at the University of Gothenburg, Gothenburg, Sweden, UCL Institute of Neurology, Queen Square, London, United Kingdom

Kaj Blennow

Affiliations Clinical Neurochemistry Laboratory, Sahlgrenska University Hospital, Mölndal, Sweden, Institute of Neuroscience and Physiology, Department of Psychiatry and Neurochemistry, the Sahlgrenska Academy at the University of Gothenburg, Gothenburg, Sweden

Thomas Karlsson

Affiliations Disability Research, Department of Behavioral Sciences and Learning, Linköping University, Linköping, Sweden, Linnaeus Centre HEAD, Linköping University, Linköping, Sweden

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: SN TK JM. Performed the experiments: SN. Analyzed the data: SN HB JM HZ KB TK. Contributed reagents/materials/analysis tools: SN TK KB HZ. Wrote the paper: SN HB JM KB HZ TK.