Opening the black box of record linkage.

Harron K, Wade A, Muller-Pebody B, Goldstein H, Gilbert R.

The UK government’s plan for a secure data service—Strengthening the international competitiveness of UK life sciences research—will transform the availability of linked electronic health records to support service provision, planning and research. In April 2012, the new Clinical Practice Research Datalink was established to provide linked national e-health records, facilitating large-scale, population-based research and service evaluation.