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- W22471809 abstract "Evidence shows a fall in folate and vitamin B(12) levels in women taking oral contraceptives. These levels do not return to normal until about three months after usage has stopped, but many women become pregnant during this time. This paper examines the evidence for an effect on such pregnancies of lowered folate and B(12) levels, and concludes that nutritional counselling should begin in schools, should continue in the medical care of women in their childbearing years, and folic acid supplementation should begin as soon as pregnancy is confirmed. This supplementation should be periconceptional in women at higher risk of bearing a child with neural tube defects, and greater in multiple pregnancy, malabsorption, hemolytic anemia and concomitant use of drugs known to be folate antogonists." @default.
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- W22471809 date "1985-08-01" @default.
- W22471809 modified "2023-09-23" @default.
- W22471809 title "Effects of oral contraceptive usage on b(12) and folate levels." @default.
- W22471809 hasPubMedCentralId "https://www.ncbi.nlm.nih.gov/pmc/articles/2327375" @default.
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