About the Authors

Sanna Neselius

sanna.neselius@vgregion.se

Affiliations Department. of Orthopaedics, Sahlgrenska University Hospital, Gothenburg, Sweden, Institution For Clinical Sciences, The Sahlgrenska Academy at University of Gothenburg, Sweden

Helena Brisby

Affiliations Department. of Orthopaedics, Sahlgrenska University Hospital, Gothenburg, Sweden, Institution For Clinical Sciences, The Sahlgrenska Academy at University of Gothenburg, Sweden

Annette Theodorsson

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

Kaj Blennow

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

Henrik Zetterberg

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

Jan Marcusson

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

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

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