Affiliation: | (1) Swiss Paraplegic Research (SPF), 6207 Nottwil, Switzerland;(2) Department of Health Sciences and Health Policy, University of Lucerne, Lucerne, Switzerland;(3) Institute for Medical Informatics, Biometry and Epidemiology (IBE), Ludwig-Maximilian University, Munich, Germany;(4) Institute for Statistics, Ludwig-Maximilian University, Munich, Germany;(5) Seminar for Statistics, Swiss Federal Institute of Technology, Zurich, Switzerland;(6) Institute for Health and Rehabilitation Sciences, Ludwig-Maximilian University, Munich, Germany;(7) Department of Medical Biometry and Statistics, German Cochrane Centre, University Medical Centre Freiburg, Freiburg, Germany;(8) WHO ICF Research Branch of the German WHO Collaborating Centre (DIMDI), Munich, Germany;(9) WHO ICF Research Branch of the German WHO Collaborating Centre (DIMDI), Nottwil, Switzerland |