1. Department of Geriatrics, Zhongshan Hospital, Fudan University, Shanghai 200032, China
2. Department of Thoracic Surgery, Sixth People's Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200025, China
3. Department of Oncology, Zhongshan Hospital, Fudan University, Shanghai 200032, China
4. Department of Nuclear Medicine, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200025, China