1. School of Population Medicine and Public Health Chinese Academy of Medical Sciences & Peking Union Medical College Beijing P. R. China
2. Beijing Friendship Hospital Capital Medical University Beijing P. R. China
3. National Health Commission Key Laboratory of Systems Biology of Pathogens and Christophe Mérieux Laboratory, Institute of Pathogen Biology Chinese Academy of Medical Sciences and Peking Union Medical College Beijing P. R. China
4. School of Health Policy and Management Chinese Academy of Medical Sciences and Peking Union Medical College Beijing P. R. China