Funding for this research was provided by:
Diabetes UK (17/0005587)
Wellcome Trust (202802/Z/16/Z, 204813/Z/16/Z)
World Cancer Research Fund International (IIG_2019_2009)
Cancer Research UK (C18281/A19169)
Medical Research Council and Wellcome Trust (217065/Z/19/Z)
National Institute for Health Research (BRC-1215-20011)
Medical Research Council (MC_UU_12013/3, MC_UU_00011/1)
Received: 3 June 2020
Accepted: 12 November 2020
First Online: 17 December 2020
Ethics approval and consent to participate
: All participants provided written informed consent, and each study was approved by the relevant research ethics committee or institutional review board.
: Not applicable
: None to declare.