1. Department of Surgery, Jichi Medical University, Yakushiji, Shimotsuke-City, Tochigi, Japan
2. Department of Surgery, Division of Thoracic Surgery, Cedars-Sinai Medical Center, Los Angeles, CA, USA
3. College of Medical Laboratory Techniques, Tianjin Medical University, Tianjin, China
4. Department of Surgery, Samuel Oschin Comprehensive Cancer Institute, Cedars-Sinai Medical Center, Los Angeles, CA, USA