1. 1Department of Respiratory and Critical Care Medicine, Renmin Hospital of Wuhan University, Wuhan, China.
2. 2Department of Oncology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.
3. 3Department of Epidemiology and Biostatistics, School of Public Health, TaiKang Center for Life and Medical Sciences, Wuhan University; Research Center of Public Health, Renmin hospital of Wuhan University, Wuhan, China.
4. 4Department of Medical Oncology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou City, China.
5. 5Department of Urology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.
6. 6Department of Critical Care Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.