1. Department of Pulmonary and Critical Care Medicine, The First Hospital of Shanxi Medical University, Taiyuan, China;
2. Department of Physiology and
3. Department of Pathophysiology, State Key Laboratory of Medical Molecular Biology, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences, Peking Union Medical College, Beijing, China;
4. National Health Commission Key Laboratory of Pneumoconiosis, Taiyuan, China;
5. Department of Respiratory and Critical Care Medicine, The First Affiliated Hospital of Xi’an Jiao tong University, Xi’an, China; and
6. Department of Pulmonary and Critical Care Medicine, Center of Respiratory Medicine, China-Japan Friendship Hospital, Beijing, China