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  1. Sep 2021
  2. www.bostonglobe.com www.bostonglobe.com
    Pfizer says its COVID-19 vaccine is safe and effective in younger children ages 5 to 11 - The Boston Globe
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    1. NatasjaDerbyMcCabe 21 Sep 2021

      Pfizer says its COVID-19 vaccine is safe and effective in younger children ages 5 to 11—The Boston Globe. (n.d.). Retrieved 21 September 2021, from https://www.bostonglobe.com/2021/09/20/nation/pfizer-says-its-covid-19-vaccine-prompts-protective-immune-response-younger-children/

      is:news lang:en COVID-19 children safe Pfizer BionNTech highly effective 5 to 11 year olds
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    bostonglobe.com/2021/09/20/nation/pfizer-says-its-covid-19-vaccine-prompts-protective-immune-response-younger-children/