1. Applied Surgical and Rehabilitation Technology Lab, Department of Trauma Surgery, Orthopedic Surgery and Hand Surgery, University Medical Center Göttingen, Göttingen, Germany.
2. Faculty of Life Sciences, University of Applied Sciences (HAW) Hamburg, Hamburg, Germany.
3. Department of Translational Research and Knowledge Management, Otto Bock HealthCare GmbH, Duderstadt, Germany.
4. Department of Bioengineering, Imperial College London, London, UK.