Speculation and experimentation in early poliomyelitis research.
D000818:Animals; D004195:Disease Models, Animal; D004196:Disease Outbreaks / Q000266:history; D005060:Europe; D000882:Haplorhini; D049673:History, 20th Century; D006801:Humans; D011051:Poliomyelitis / Q000266:history* / Q000276:immunology / Q000635:transmission; D012106:Research / Q000266:history / Q000592:standards; D014481:United States