1. Department of General Thoracic Surgery and Breast and Endocrinological Surgery Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences Kita‐ku Okayama Japan
2. Department of Surgery, Division of Cardiovascular and Thoracic Surgery Duke University School of Medicine Durham North Carolina USA
3. Organ Transplant Center, Okayama University Hospital Kita‐ku Okayama Japan