1. Department of Respiratory Medicine; Jiangning Hospital; Nanjing Medical University; Nanjing; China
2. Department of Respiratory Medicine; People's Hospital of Liyang; Liyang; China
3. Pulmonary Department-Oncology Unit; “G.Papanikolaou” General Hospital; Aristotle University of Thessaloniki; Thessaloniki; Greece
4. Department of Respiratory Medicine; People's Hospital of Binzhou; Binzhou; China
5. Department of Respiratory Medicine; Changhai Hospital; Second Military Medical University; Shanghai; China