Neural-tube defects.
Botto
L D
LD
Birth Defects and Genetic Diseases Branch, National Center for Environmental Health, Centers for Disease Control and Prevention, Atlanta, GA 30341, USA. lcb9@cdc.gov
Moore
C A
CA
Khoury
M J
MJ
Erickson
J D
JD
D017281:Cost of Illness; D019587:Dietary Supplements; D005492:Folic Acid / Q000008:administration & dosage; D006801:Humans; D009436:Neural Tube Defects / Q000453:epidemiology / Q000209:etiology / Q000517:prevention & control / Q000628:therapy; D016742:Preconception Care
D005492:Folic Acid