1. Department of Thoracic and Cardiovascular Surgery, Kyungpook National University Hospital, Kyungpook National University School of Medicine, Daegu, Korea
2. Department of Anatomy, Keimyung University School of Medicine, Dongsan Medical Center, Daegu, Korea
3. Department of Thoracic and Cardiovascular Surgery, Keimyung University School of Medicine, Dongsan Medical Center, Daegu, Korea
4. Department of Medical Genetics, Keimyung University School of Medicine, Dongsan Medical Center, Daegu, Korea