[1] Swiss Paraplegic Research (SPF),Department of Health Sciences and Health Policy
[2] University of Lucerne and SPF,undefined
[3] Hannover Medical School,undefined
[4] Institute for Epidemiology,undefined
[5] Social Medicine and Health Systems Research,undefined
[6] Neuro-Urology,undefined
[7] Swiss Paraplegic Center (SPZ),undefined