1. Department of Medical Simulation Engineering, Research Center for Nano Medical Engineering, Institute for Frontier Medical Sciences, Kyoto University, Kyoto, Japan.
2. Department of Nanomedical Engineering, College of Nanoscience & Nanotechnology, Pusan National University, Busan, Korea.
3. Department of Orthopaedic Surgery, Osaka City University Graduate School of Medicine, Osaka, Japan.
4. Department of Orthopaedics, Shinshu University Graduate School of Medicine, Matsumoto, Japan.