title: Case-control versus cohort studies in the investigation of childhood cancer.
authors.affiliation: Sir James Spence Institute of Child Health, University of Newcastle upon Tyne, Royal Victoria Infirmary, UK.
authors.forename: Claire L
authors.initials: CL
authors.lastname: Bell
authors.forename: Donna M
authors.initials: DM
authors.lastname: Hammal
mesh_terms: D016022:Case-Control Studies; D002648:Child; D015331:Cohort Studies; D006801:Humans; D009369:Neoplasms / Q000453:epidemiology*; D012107:Research Design