1. Division of Rehabilitation Akita University Hospital Akita City Japan
2. Department of Data Science Yokohama City University Graduate School of Data Science Yokohama City Japan
3. Department of Esophageal Surgery Akita University Hospital Akita City Japan
4. Department of Thoracic Surgery Akita University Graduate School of Medicine Akita City Japan
5. Department of Rehabilitation Medicine Akita University Hospital Akita City Japan