1. School of Pharmaceutical Sciences, Xiamen University, Xiamen, P.R. China
2. School of Pharmaceutical Sciences, Sun Yat-Sen University, Guangzhou, P.R. China
3. Center of Respiratory Medicine, China-Japan Friendship Hospital, National Center for Respiratory Medicine, Institute of Respiratory Medicine, Chinese Academy of Medical Sciences, National Clinical Research Center for Respiratory Diseases, Beijing, P.R. China