1. Center for Translational Medicine Frontier Institute of Science and TechnologyXi'an Jiaotong University Xi'an China
2. Key Laboratory of Biomedical Information Engineering of the Ministry of Education, School of Life Science and TechnologyXi'an Jiaotong University Xi'an China
3. Institute of Human Virology and Department of Biochemistry and Molecular BiologyUniversity of Maryland School of Medicine Baltimore MD USA
4. Department of Internal MedicineHospital of Xi'an Jiaotong University Xi'an China