| (i) | Construction of cohorts of live babies born and mothers who delivered a live baby in HES |
| (ii) | Linkage of babies to mothers in HES |
| (iii) | Linkage of the enhanced HES birth cohort to NDSCR |
| (i) | Construction of cohorts of live babies born and mothers who delivered a live baby in HES |
| (ii) | Linkage of babies to mothers in HES |
| (iii) | Linkage of the enhanced HES birth cohort to NDSCR |