Tribute to the pioneer who gave parents a choice.
Rogers
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D049673:History, 20th Century; D006801:Humans; D011051:Poliomyelitis / Q000266:history; D011054:Poliovirus Vaccine, Inactivated / Q000266:history*; D011055:Poliovirus Vaccine, Oral / Q000266:history
D011054:Poliovirus Vaccine, Inactivated; D011055:Poliovirus Vaccine, Oral