1. Department of Thoracic Surgery and Oncology, The Second Department of Thoracic Surgery, Cancer Center, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi 710061, P.R. China
2. Department of Otorhinolaryngology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi 710061, P.R. China
3. Department of Surgery Oncology, The First People's Hospital of Xianyang City, Xianyang, Shaanxi 712000, P.R. China
4. Department of Vascular and Endovascular Surgery, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi 710061, P.R. China
5. Solid Tumor Clinical Trials, Georgia Cancer Center, Medical College of Georgia, Augusta University, Augusta, GA 30912, USA