1. Department of Pulmonary MedicineFudan University Zhongshan Hospital200032ShanghaiChina
2. Biomedical Research CenterFudan University Zhongshan Hospital200032ShanghaiChina
3. Infectious Disease and Immunogenetics Section (IDIS)Department of Transfusion MedicineClinical Center, and trans‐NIH Center for Human Immunology (CHI)National Institutes of Health20892BethesdaMDUSA