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Contributors REK and MW planned and wrote the initial draft. This was reviewed and edited by CL and MB before submission. REK and MW led the resubmission process following peer review and CL and MB reviewed the manuscript prior to resubmission.
Competing interests REK is an associate editor for the Postgraduate Medical Journal. CL was editor in chief of the CMO Report 2012. MW is a regional adviser for RCPCH.
Provenance and peer review Not commissioned; externally peer reviewed.
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