Neutralizing antibodies against enteroviruses in patients with hand, foot and mouth disease by Nguyet, LA, Thanh, TT, Nhan, LNT, Hong, NTT, Nhu, LNT, Van, HMT, Ny, NTH, Anh, NT, Han, DDK, Tuan, HM, Huy, VQ, Viet, HL, Cuong, HQ, Thao, NTT, Viet, DC, Khanh, TH, Thwaites, L, Clapham, H, Hung, NT, Chau, NVV, Thwaites, G, Ha, DQ, van Doorn, HR, Tan, LV