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Oral Poliovirus Vaccination in Costa Rica. Nature 194, 1229–1230 (1962). https://doi.org/10.1038/1941229b0
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DOI: https://doi.org/10.1038/1941229b0
Nature volume 194, pages 1229–1230 (1962)
Oral Poliovirus Vaccination in Costa Rica. Nature 194, 1229–1230 (1962). https://doi.org/10.1038/1941229b0
Issue Date:
DOI: https://doi.org/10.1038/1941229b0