Funding for this research was provided by:
Medical Research Council (MR/L010011/1, MR/K501335/1)
Canadian Institutes of Health Research (MOP- 111102)
Fonds de Recherche du Québec - Santé
Michael Smith Foundation for Health Research
Canadian Research Chair in Reproductive Health
Received: 7 August 2017
Accepted: 18 January 2018
First Online: 12 February 2018
Ethics approval and consent to participate
: The collection of fetal material was approved by the NHS Grampian Research Ethics Committee (REC 04/S0802/21 and REC 15/NS/0123).
: Not applicable.
: The authors declare that they have no competing interests.
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