1. Department of Orthopedics, Balgrist University Hospital, University of Zurich, Zurich, Switzerland
2. Institute for Biomechanics, Swiss Federal Institute of Technology Zurich, Zurich, Switzerland
3. Institute for Mechanical Systems, Swiss Federal Institute of Technology Zurich, Zurich, Switzerland
4. Institute for Chemical and Bioengineering, Swiss Federal Institute of Technology Zurich, Zurich, Switzerland