Funding for this research was provided by:
Cancer Research UK (C52999/A19748, C1417/A22962)
UK Prevention Research Partnership (MR/S037519/1)
Article History
Received: 14 February 2020
Accepted: 6 May 2020
First Online: 25 June 2020
Ethics approval and consent to participate
: Ethics approval for the Toolkit Study was originally granted by the University College London Ethics Committee (ID 0498/001). Addition of the mental health questions to the study was approved by the University College London Research Ethics Committee (ID: 2808/005). All participants provided informed consent.
: Not applicable
: The authors declare no competing interests.