1. NHS Lothian, Department of Clinical Neuropsychology; Astley Ainslie Hospital; Edinburgh United Kingdom EH9 2HL
2. Department of Clinical Psychology, School of Health in Social Sciences; University of Edinburgh; Teviot Place Edinburgh United Kingdom
3. Department of Neurology; Penn State Hershey Medical Center; Hershey Pennsylvania USA
4. Department of Neurology; King's College Hospital; London United Kingdom