Hongchao Lu , Yi Zhao , Jingfen Zhang , Yuelan Wang , Wei Li , Xiaopeng Zhu , Shiwei Sun , Jingyi Xu , Lunjiang Ling , Lun Cai , Dongbo Bu and Runsheng Chen
BMC Infectious Diseases 2004, 4:3doi:10.1186/1471-2334-4-3