a
College of Chemistry and Molecular Sciences, Key Laboratory of Biomedical Polymers of Ministry of Education, Wuhan University, Hubei, P. R. China
E-mail: xzhou@whu.edu.cn
;
Fax: +86-27-68756663
b
State Key Laboratory of Virology, Department of Immunology, School of Medicine, Wuhan University, P. R. China
c
Zhongnan Hosptial, Wuhan University, P. R. China
d
Department of Microbiology and Immunology H107, The Penn State College of Medicine, Hershey, U. S. A.
e
State Key Laboratory of Natural and Biomimetic Drugs, Peking University, Beijing, P. R. China