[Unresolved problems of poliomyelitis control].
D029822:Enterovirus B, Human; D004769:Enterovirus Infections / Q000453:epidemiology; D005860:Germany, West; D006801:Humans; D007115:Immunization Schedule; D011051:Poliomyelitis / Q000453:epidemiology* / Q000517:prevention & control*; D011054:Poliovirus Vaccine, Inactivated; D011055:Poliovirus Vaccine, Oral; D014611:Vaccination
D011054:Poliovirus Vaccine, Inactivated; D011055:Poliovirus Vaccine, Oral
Offene Fragen der Poliomyelitisbekämpfung.