1. Department of Orthopedic Surgery Keio University School of Medicine, Shinjuku Tokyo Japan
2. Faculty of Biology‐Oriented Science and Technology, Kindai University Kinokawa Wakayama Japan
3. The National Institutes for Quantum and Radiological Science and Technology Quantum Beam Science Research Directorate Kansai Photon Science Institute Kyoto Japan
4. Department of Clinical Biomechanics Keio University School of Medicine, Shinjuku Tokyo Japan