1. Department of Mechanical Engineering, Polytechnique Montréal, Montréal, Quebec, Canada
2. Research Center, Sainte-Justine University Hospital Center, Montréal, Quebec, Canada
3. Department of Chemistry and Chemical Engineering, Politecnico di Milano, Milano, Italy
4. Applied Research, Medtronic Spine, Memphis, TN, USA
5. Sonoran Spine Center, Tempe, AZ, USA
6. Mayo Clinic School of Medicine, Phoenix, AZ, USA
7. School of Medicine, University of Arizona, Phoenix, AZ, USA