Affiliation: | 1. Departments of Sensory & Motor System Medicine, Faculty of Medicine, University of Tokyo, Tokyo, Japan.; 2. Bone and Cartilage Regenerative Medicine, Faculty of Medicine, University of Tokyo, Tokyo, Japan.; 3. Department of Rehabilitation for the Movement Functions, Research Institute, National Rehabilitation Center for Persons with Disabilities, Saitama, Japan.; University of Oulu, Finland, |