To record the fetal and postnatal development of children conceived using Mitochondrial Donation and to perform internationally validated Bayley-III developmental assessment tool at 18 months (corrected for gestational age).~The null hypothesis for this research is that children born following the use of Mitochondrial Donation (IVF) techniques have normal neurodevelopment developmental outcomes at 18 months.
The Investigator proposes to record the fetal and postnatal development of children conceived using Mitochondrial Donation (MD) and to perform expert assessment of development at 18 months (corrected for gestational age) using the internationally validated Bayley-III developmental assessment tool.