By Xu YZ   Geng DC   Mao HQ   Zhu XS   Yang HL   in The Journal of International Medical Research

ISSN:0300-0605|38|4|1266-1275

Field House Publishing‎(2010)‎

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By Chew J.L.   Wolfowicz C.B.   Mao H.-Q.   Leong K.W.   Chua K.Y.   in Vaccine

ISSN:0264-410X|21|21|2720-2729

Elsevier‎(2003)‎

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