Folic acid: Is self reported use of supplements accurate?
Burton
A
A
Cancer Research Campaign Trials Unit, Institute for Cancer Studies, The University of Birmingham, Edgbaston, Birmingham, UK.
Wilson
S
S
Gillies
A J
AJ
D000293:Adolescent; D000328:Adult; D005260:Female; D005492:Folic Acid / Q000008:administration & dosage* / Q000097:blood; D006801:Humans; D008875:Middle Aged; D010349:Patient Compliance; D011247:Pregnancy; D015203:Reproducibility of Results; D018709:Statistics, Nonparametric
D005492:Folic Acid