Neural tube defects and periconceptional folic acid in England and Wales: retrospective study.
Department of Obstetrics and Gynaecology, Royal Free and University College Medical School, London NW3 2QG.
R A
RA
Kadir
C
C
Sabin
B
B
Whitlow
E
E
Brockbank
D
D
Economides
D004739:England / Q000453:epidemiology; D005260:Female; D005492:Folic Acid / Q000008:administration & dosage*; D006266:Health Education; D006801:Humans; D015994:Incidence; D009436:Neural Tube Defects / Q000453:epidemiology* / Q000517:prevention & control*; D011295:Prenatal Care; D014852:Wales / Q000453:epidemiology
D005492:Folic Acid