1. CD Laboratory for the Restoration of Extremity Function, Department of Surgery Medical University of Vienna Vienna Austria
2. Division of Biomedical Research Medical University of Vienna Vienna Austria
3. OttoBock Healthcare Systems Vienna Austria
4. Center for Medical Physics and Biomedical Engineering Medical University of Vienna Vienna Austria
5. Department of Bioengineering Imperial College London London UK
6. Division of Plastic and Reconstructive Surgery Medical University of Vienna Vienna Austria