1. Department of Respiratory and Critical Care Medicine the Second Affiliated Hospital, Anhui Medical University Hefei China
2. Department of Cardiothoracic Surgery the Second Affiliated Hospital, Anhui Medical University Hefei China
3. Department of Thoracic Surgery Anhui Chest Hospital, Thoracic Clinical College of Anhui Medical University Hefei China
4. Anhui Province Key Laboratory of Medical Physics and Technology Institute of Heath & Medical Technology, Hefei Institutes of Physical Science, Chinese Academy of Sciences Hefei China
5. Hefei Cancer Hospital, Chinese Academy of Science Hefei China