1 Division of Thoracic Surgery, Department of Surgery, Tri-Service General Hospital, National Defense Medical Center, 325, Section 2, Cheng-Kung Rd, Taipei 114, Taiwan, Republic of China. Electronic address: addgujfjui@gmail.com.
2 Division of Thoracic Surgery, Department of Surgery, Tri-Service General Hospital, National Defense Medical Center, 325, Section 2, Cheng-Kung Rd, Taipei 114, Taiwan, Republic of China.