1. Department of Orthopaedics, Osaka University Graduate School of Medicine, 2–2 Yamadaoka, Suita, Osaka, Japan
2. Department of Medical Innovation, Osaka University Hospital, 2–15 Yamadaoka, Suita, Osaka, Japan
3. Health & Global Policy Institute, Grand Cube 3F, Otemachi Financial City, Global Business Hub Tokyo, 1-9-2, Otemachi, Chiyoda-ku, Tokyo, Japan
4. Department of Cardiovascular Surgery, Osaka University Graduate School of Medicine, 2–2 Yamadaoka, Suita, Osaka, Japan