RT Journal Article SR Electronic T1 677→CT mutation on the methylenetetrahydrofolate reductase gene is not a risk factor for neural tube defects in Turkey JF Archives of Disease in Childhood - Fetal and Neonatal Edition JO Arch Dis Child Fetal Neonatal Ed FD BMJ Publishing Group Ltd and Royal College of Paediatrics and Child Health SP F234 OP F234 DO 10.1136/fn.78.3.F234c VO 78 IS 3 A1 KORAY BODUROGLU A1 MEHMET ALIKASIFOGLU A1 BURCU ANAR A1 ERGUL TUNCBILEK YR 1998 UL http://fn.bmj.com/content/78/3/F234.4.abstract AB