Acknowledgements
We are grateful for the time spent by staff at each of the sites; their participation and thoughtful discussions were invaluable to this research. Thanks are also given to the members of the public who helped us test the core questionnaire and the patients and service users who took part in the surveys at each of the pilot sites.
Finally, our thanks are given to the project's advisory group, collaborators and the patient and public involvement (PPI) panel for their guidance and expert opinion.