| Affiliation: | 1. Department of Orthopaedic Surgery and Rehabilitation, Oregon Health and Science University, Portland, Oregon, U.S.A.;2. Department of Neurology, Oregon Health and Science University, Portland, Oregon, U.S.A.;3. APDM, Portland, Oregon, U.S.A.;1. University Hospital Zurich, Zurich, Switzerland;2. ETH Zurich, Switzerland;1. University of Pittsburgh, C-200 UPMC Presbyterian Hospital, 200 Lothrop Street, Pittsburgh, PA, 15213, USA;2. University of Pittsburgh, Suite 910 Liliane S Kaufmann Building, 3471 5th Avenue, Pittsburgh, PA, 15213, USA;3. Inkosi Albert Luthuli Hospital, Central Hospital University of KwaZulu Natal, Durban, South Africa |
