[Letter: What is wrong with these patients?].
D002675:Child, Preschool; D003718:Denmark; D004197:Disease Reservoirs; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D010243:Paralysis / Q000453:epidemiology / Q000209:etiology*; D011051:Poliomyelitis / Q000517:prevention & control*; D011054:Poliovirus Vaccine, Inactivated
D011054:Poliovirus Vaccine, Inactivated
Hvad fejler disse patienter.