Funding for this research was provided by:
Medical Research Council (MR/K006355)
Rosetrees Trust (A1563)
Great Ormond Street Hospital Charity (V5318)
Wellcome Trust (WT 203148/Z/16/Z)
Engineering and Physical Sciences Research Council (WT 203148/Z/16/)
Sparks Childrens Charity (V5318)
Received: 26 June 2020
Accepted: 10 August 2020
First Online: 20 August 2020
Ethics approval and consent to participate
: Informed parental consent was acquired according to National Health Service, UK guidelines. Ethical approval for the human post-mortem study was obtained from the National Research Ethics Services, Hammersmith and Queen Charlotte’s and Chelsea, West London, UK (07/H0707/139) and for the fetal MRI study from the West London and GTAC Research Ethics Committee (07/H0707/105).
: The authors declare that they have no competing interests.