1. Division of General Thoracic Surgery, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland
2. Department for BioMedical Research, Faculty of Medicine, University of Bern, Bern, Switzerland
3. Department of Thoracic Surgery, West China Hospital, Sichuan University, Chengdu, China
4. Department of Thoracic Surgery, The No.1 Hospital of Longhai City, Zhangzhou, China