title: Vaccination against poliomyelitis with inactivated vaccine beginning at 3, 4 and 9 months of age: a comparative study.
mesh_terms: D000367:Age Factors; D000914:Antibodies, Viral / Q000032:analysis; D006801:Humans; D011051:Poliomyelitis / Q000276:immunology / Q000517:prevention & control*; D011054:Poliovirus Vaccine, Inactivated / Q000008:administration & dosage; D013548:Sweden; D014611:Vaccination; D014613:Vaccines, Attenuated
chemical_list: D000914:Antibodies, Viral; D011054:Poliovirus Vaccine, Inactivated; D014613:Vaccines, Attenuated