Frequency of neural tube defects in Mexico.
Kalter
Harold
H
D019587:Dietary Supplements; D005492:Folic Acid / Q000008:administration & dosage; D006801:Humans; D007231:Infant, Newborn; D008800:Mexico / Q000453:epidemiology; D009436:Neural Tube Defects / Q000453:epidemiology* / Q000517:prevention & control
D005492:Folic Acid