6Zhang Y,Tan Xiao-Juan,Hai-Yan Yah, et al.An outbreak of hand, foot, and mouth disease associated with subgenotype C4 of human enterovirus 71 in Shandong, China. Journal of Clinical Virology . 2009,1 l(01) : 173-175.
7M.S. Oberste,Maher Kaija,Nix William A, et al.Molecular identification of 13 new enterovirus types, EV79-88, EV97, and EV100-101, members of the species Human Enterovirus B. Virus Research . 2007,21(01):51-53.
