Clare O’Connor a, b, ⁎ 
a Ultrasound and Fetal Medicine Centre, Coombe Women and Infants University Hospital, Dublin, Ireland
b UCD Centre for Human Reproduction, Coombe Women and Infants University Hospital, Dublin, Ireland
Anne Doolan
TCD Department of Paediatrics, Coombe Women and Infants University Hospital, Dublin, Ireland
Amy O’Higgins
UCD Centre for Human Reproduction, Coombe Women and Infants University Hospital, Dublin, Ireland
Ricardo Segurado
CSTAR, UCD, Belfield, Dublin, Ireland
Margaret Sheridan-Pereira
TCD Department of Paediatrics, Coombe Women and Infants University Hospital, Dublin, Ireland
Chris Fitzpatrick, Michael J. Turner
UCD Centre for Human Reproduction, Coombe Women and Infants University Hospital, Dublin, Ireland
Bernard Stuart a, b, Máireád M. Kennelly a, b
a Ultrasound and Fetal Medicine Centre, Coombe Women and Infants University Hospital, Dublin, Ireland
b UCD Centre for Human Reproduction, Coombe Women and Infants University Hospital, Dublin, Ireland