Looking back fifty-five years; from "Laudable pus" to Salk polio vaccine.
D001415:Back; D006666:History of Medicine; D006801:Humans; D011051:Poliomyelitis; D011054:Poliovirus Vaccine, Inactivated; D013492:Suppuration
D011054:Poliovirus Vaccine, Inactivated
HISTORY, MEDICAL