# data[].attributes.body
http://www.achievement.org/autodoc/printmember/sal0int-1

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http://vk.ovg.ox.ac.uk/polio

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http://www.biography.com/people/jonas-salk-9470147#later-years

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http://www.cdc.gov/vaccines/parents/diseases/child/polio-indepth-color.pdf

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https://blogs.loc.gov/now-see-hear/2014/10/when-polio-was-defeated-by-a-vaccine-and-a-seven-year-old-girl/

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https://www.youtube.com/watch?v=H6NkM61HlB8

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http://www.notablebiographies.com/Ro-Sc/Salk-Jonas.html

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https://consumer.healthday.com/kids-health-information-23/kids-ailments-health-news-434/the-salk-polio-vaccine-greatest-public-health-experiment-in-history-691915.html

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https://www.timetoast.com/timelines/jonas-salk--5

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http://www.achievement.org/autodoc/page/sal0bio-1

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https://en.wikipedia.org/wiki/Jonas_Salk