1. Department of Occupational Therapy, Department of Midwifery, Physiotherapy, Occupational Therapy and Psychomotor Therapy, University College Copenhagen, Copenhagen, Denmark
2. Department of Paediatrics and Adolescent Medicine, Center for Rett Syndrome, Rigshospitalet, Copenhagen, Denmark
3. The ADL Unit, The Parker Institute, Copenhagen University hospital, Bispebjerg and Frederiksberg, Copenhagen, Denmark
4. The Research Initiative for Activity Studies and Occupational Therapy, Research Unit of User Perspectives, Department of Public Health, University of Southern Denmark, Odense, Denmark