1. Department of Biomedical Engineering The Hong Kong Polytechnic University Hong Kong SAR 999077 China
2. Li Ka Shing Faculty of Medicine The University of Hong Kong 21 Sassoon Rd, Pokfulam Hong Kong SAR 999077 China
3. National Engineering Research Center for Biomaterials Sichuan University Chengdu 610065 China
4. Clinical Research Center for Respiratory Disease West China Hospital Sichuan University Chengdu 610065 China
5. Institute for Advanced Study Chengdu University Chengdu 610106 P. R. China