Ejlerskov, Katrine
Sharp, Stephen J.
Stead, Martine
Adamson, Ashley J.
White, Martin
Adams, Jean http://orcid.org/0000-0002-5733-7830
Funding for this research was provided by:
Department of Health, Public Health Research Consortium
Medical Research Council (MR/K023187/1)
National Institute for Health Research
Article History
Received: 14 September 2018
Accepted: 21 November 2018
First Online: 5 December 2018
Ethics approval and consent to participate
: Ethical approval was not required for these analyses of aggregate anonymised purchase data.
: Not applicable.
: The authors declare they have no competing interests.
: Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.