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. 1957 Sep;3(2):51-61.
doi: 10.1093/oxfordjournals.tropej.a057457.

Survey for sero-immunity to poliomyelitis in Peru and Colombia with comments on the changing pattern of occurrence of poliomyelitis in tropical areas

Survey for sero-immunity to poliomyelitis in Peru and Colombia with comments on the changing pattern of occurrence of poliomyelitis in tropical areas

H M GELFAND et al. J Trop Pediatr (Lond). 1957 Sep.
No abstract available

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