title: Are there serious problems?
authors.forename: S
authors.initials: S
authors.lastname: Sepkowitz
mesh_terms: D002648:Child; D002675:Child, Preschool; D015721:Diphtheria-Tetanus-Pertussis Vaccine / Q000009:adverse effects*; D006801:Humans; D007223:Infant
chemical_list: D015721:Diphtheria-Tetanus-Pertussis Vaccine