1. Department of Tetrahand Surgery and Hand Surgery (Nottwil Tetrahand), Swiss Paraplegic Centre, Nottwil, Switzerland
2. Departments of Physical Medicine and Rehabilitation, Physiology and Biomedical Engineering, Northwestern University, Chicago, IL, USA
3. Shirley Ryan AbilityLab, Chicago, IL, USA
4. Hines V. A. Medical Center, Maywood, IL, USA