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- Long-term studies of Covid vaccines hurt by placebo recipients getting immunized https://www.npr.org/sections/health-shots/2021/02/19/969143015/long-term-studies-of-covid-19-vaccines-hurt-by-placebo-recipients-getting-immuni 25 comments
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Search title: Moderna And Pfizer Vaccine Studies Hampered As Placebo Recipients Get Real Shot : Shots - Health News : NPR
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