PDF(138 KB)
Assessment of results of popliomyelitis control in Haikou (1956 ~ 2000).
China Tropical Medicine ›› 2003, Vol. 3 ›› Issue (06) : 762-764.
PDF(138 KB)
PDF(138 KB)
Assessment of results of popliomyelitis control in Haikou (1956 ~ 2000).
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