title: Problems in the choice of combined vaccines for Europe.
authors.affiliation: University of Pennsylvania.
authors.forename: S A
authors.initials: SA
authors.lastname: Plotkin
mesh_terms: D001428:Bacterial Vaccines / Q000592:standards; D002648:Child; D002675:Child, Preschool; D017277:Drug Approval; D005060:Europe; D006291:Health Policy; D006801:Humans; D007115:Immunization Schedule; D007117:Immunization, Secondary / Q000592:standards; D007223:Infant; D017778:Vaccines, Combined / Q000592:standards; D014765:Viral Vaccines / Q000592:standards
chemical_list: D001428:Bacterial Vaccines; D017778:Vaccines, Combined; D014765:Viral Vaccines