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Large study to test COVID vaccine in kids, Pfizer says
Pfizer begins large study to test COVID vaccine in kids
Large study to test Covid vaccine in kids -Pfizer
Pfizer to test COVID-19 vaccine on kids
Pfizer starts clinical trial testing COVID-19 vaccine on kids
Pfizer starting to test vaccine on children
Pfizer looks to test COVID vaccine on young children
Pfizer testing its vaccine on children under age 12
Pfizer Expands COVID-19 Vaccine Testing To Kids Under 12
Pfizer tests lower vaccine doses in trials for children
Pfizer to begin testing lower dosage of COVID-19 vaccine on bigger group of children under 12 | ANC
Pfizer Launches Vaccine Study For Children As Young As Six Months | Andrea Mitchell | MSNBC