1. Department of Respiratory Medicine; Center of Interventional Pulmonology, Changhai Hospital; Second Military Medical University; Shanghai China
2. Department of Respiratory Medicine; Xiangya Hospital; Central South University; Changsha
3. Department of Respiratory Medicine; Shanghai Thorax Hospital; Shanghai Jiaotong University; Shanghai China
4. Department of Respiratory Medicine; Tangdu Hospital; Fourth Military Medical University; Xi'an
5. Department of Respiratory Medicine; Shanghai Pulmonary Hospital; Tongji University; Shanghai China
6. Department of Respiratory Medicine; Guangzhou Institute of Respiratory Disease; Guangzhou China