1. Department of Thoracic Surgery, The First Affiliated Hospital of Xi’an Jiaotong University, Xi’an, Shanxi, China
2. Department of Surgical Oncology, The First People’s Hospital of Xianyang City, Xianyang, Shanxi, China
3. Department of Vascular Surgery, The First Affiliated Hospital of Xi’an Jiaotong University, Xi’an, Shanxi, China
4. Department of Endocrinology and Second Department of Geriatrics, The First Affiliated Hospital of Xi’an Jiaotong University, Xi’an, Shanxi, China