title: Investing in national primary care data is way forward in time of care.data.
authors.affiliation: UCL Institute of Child Health, London WC1N 1EH, UK.
authors.forename: Pia
authors.initials: P
authors.lastname: Hardelid
authors.forename: Ruth
authors.initials: R
authors.lastname: Gilbert
mesh_terms: D003219:Confidentiality; D003625:Data Collection / Q000379:methods*; D006801:Humans; D008498:Medical Record Linkage