References

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2. Johnson DD, Wagner CL, Hulsey TC, McNeil RB, Ebeling M, Hollis BW. Vitamin D deficiency and insufficiency is common during pregnancy. Am J Perinatol. 2011 Jan: 28 (1):7-12

3. Ginde AA, Sullivan AF, Mansbach JM, Camargo CA Jr. Vitamin D insufficiency in pregnant and nonpregnant women of childbearing age in the United States. Am J Obstet Gynecol. 2010 May; 202 (5): 436. e1-8

4. Bodnar LM, Simhan HN, Powers RW, Frank MP, Cooperstein E, Roberts JM. High prevalence of vitamin D insufficiency in black and white pregnant women residing in the northern United States and their neonates. J Nutr. 2007 Feb; 137 (2): 447-52

5. Neuringer N, et al: N-3 fatty acids in the brain and retina. Evidence for the essentiality. Nutr Rev. 44:285-94, 1986

6. Hornstra G, et al: Long-chain polyunsaturated fatty acids, pregnancy, and pregnancy outcomes. Am J Clin Nutr. 71:285S-291S, 2000

7. http://www.marchofdimes.com/pregnancy/nutrition_vitamins.html

8. Burke B, et al: Preventing neural tube defects: A prevention model and resource guide. (Atlanta, Ga: Centers for disease control and Prevention, 1998)

9. Locksmith GJ, Duff, P: Preventing neural tube defects: the importance of periconceptual folic acid supplements. Obstet Gynecol. 91:1027-34, 1998

10. www.acog.org/~/media/For%20Patients/faq001.pdf?dmc=1&ts=20120720T1653261208

11. Hollis BW, et al. Nutritional vitamin D status during pregnancy: reasons for concern. CMAJ. 174(9):1287-90, 2006.

12. de Escobar DM, et al. Maternal thyroid hormones early in pregnancy and fetal brain development. Best Pract Res Clin Endocrinol Metab. 18:225-248, 2004

13. Gilnoer D. Pregnancy and iodine. Thyroid 11:471-81, 2001

14. Becker DC, et al. Iodine supplementation for pregnancy and lactation- United States and Canada: recommendations of the American Thyroid Association. Thyroid 16:949-51, 2006.

15. Neuringer N, et al: N-3 fatty acids in the brain and retina. Evidence for their essentiality. Nutr Rev. 44:285-94, 1986

16. Hornstra G, et al: Long-chain polyunsaturated fatty acids, pregnancy and pregnancy outcomes. Am J Clin Nutr. 71:285S-291S, 2000.

17. www.acog.org/~/media/For%20Patients/faq001.pdf?dmc=1&ts=20120720T1653261208

18. Burke B, et al: Preventing neural tube defects: A prevention model and resource guide. (Atlanta, Ga. : Centers for disease control and Pr3evention, 1998).

19. Locksmith GJ, Duff, P: Preventing neural tube defects: the importance of periconceptual folic acid supplements. Obstet Gynecol. 91:1027-34, 1998