1. Department of Clinical Neuroscience; Karolinska Institutet; Stockholm Sweden
2. Department of Neurosurgery, R2:02; Karolinska University Hospital; Stockholm Sweden
3. Department of Surgery and Urology; Danderyd University Hospital; Stockholm Sweden
4. Handen Geriatrics; Praktikertjänst N.Ä.R.A.; Haninge Sweden
5. Red Cross University College; Stockholm Sweden