Funding for this research was provided by:
Fifth Framework Programme (QLK4-1999-01422)
World Cancer Research Fund International (2004/03)
Newlife – The Charity for Disabled Children (07/20)
National Institute for Health Research
Medical Research Council (U106179472, 7500001180, MC_UU_00006/2, G1001995, MC_UU_12015/2)
Mothercare Charitable Research Foundation (RG54608)
Received: 17 November 2020
Accepted: 20 April 2021
First Online: 30 April 2021
: The CBGS was granted ethical approval by the Cambridge Local Research Ethics Committee, Addenbrooke’s Hospital, Cambridge, U.K. (00/325). All procedures followed were in accordance with the institutional guidelines. Written informed consent was obtained from all women (for themselves and on behalf of their baby).
: Not applicable.
: The authors declare that they have no competing interests.