1. Department of Orthopaedic Surgery; Skaraborg Hospital; Skövde Sweden
2. Geriatric Medicine; Department of Internal Medicine and Clinical Nutrition; Institute of Medicine; University of Gothenburg; Gothenburg Sweden
3. Department of Gastrosurgical Research & Education; Institute of Clinical Sciences; Sahlgrenska Academy University of Gothenburg Gothenburg Sweden
4. Department of Molecular and Clinical Medicine; the Sahlgrenska Academy; University of Gothenburg; Gothenburg Sweden
5. Department of Surgery. Faculty of Medicine and Health; Örebro University; Örebro Sweden
6. Health Metrics; Sahlgrenska Academin; University of Gothenburg; Gothenburg Sweden
7. School of Bioscience; University of Skövde; Skövde Sweden
8. Geriatric Medicine; Sahlgrenska University Hospital; Mölndal Sweden