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. 1960 Oct 1;2(7153):715-23.
doi: 10.1016/s0140-6736(60)91791-8.

Persistence of immunity after administration of formalin-treated poliovirus vaccine

J E SALK

Persistence of immunity after administration of formalin-treated poliovirus vaccine

J E SALK. Lancet. .
No abstract available

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