International Symposium on Reassessment of Inactivated Poliomyelitis Vaccine. Bilthoven, the Netherlands, June 24-17, 1980.
D000818:Animals; D003226:Congresses as Topic; D006801:Humans; D009426:Netherlands; D011054:Poliovirus Vaccine, Inactivated; D014613:Vaccines, Attenuated
D011054:Poliovirus Vaccine, Inactivated; D014613:Vaccines, Attenuated