Acknowledgements
We are sincerely grateful for the contribution from all our study participants - residents, families, staff and clinicians - which helped to make the study a success. In the UK, we acknowledge the support of our research colleagues at Devon Partnership NHS Trust, East of England CRN, South London and the Maudsley CRN, Solent NHS Trust, Oxford Health NHS Foundation Trust, Northumbria Healthcare NHS Trust and North London NHS Foundation Trust. In Canada, we acknowledge the many contributions of Jarlette Health Services (Alexander Place (Waterdown, ON), Roberta Place (Barrie, ON), Avalon Care Centre (Orangeville, ON), Royal Rose Place (Welland, ON)) and Responsive Group Inc., Cooksville Care Centre (Mississauga, ON) and the Alzheimer Society of Toronto.

