A dihydrofolate reductase 2 (DHFR2) variant is associated with risk of neural tube defects in an Irish cohort but not in a United Kingdom cohort. Issue 4 (5th February 2021) - Pangilinan, Faith; Finlay, Emma K.; Molloy, Anne M.; Abaan, Hattice O.; Shane, Barry; Mills, James L.; Brody, Lawrence C.; Parle‐McDermott, Anne