1. Beijing Lu Dao-Pei Hospital, Beijing, China;
2. Shenzhen Geno-immune Medical Institute, Shenzhen, China;
3. Department of Pediatrics, College of Medicine, University of Florida, Gainesville, FL;
4. University of Electronic Science and Technology of China, Sichuan, China; and
5. Department of Molecular Genetics and Microbiology, College of Medicine, University of Florida, Gainesville, FL