National Center on Birth Defects and Developmental Disabilities (2012). "Neural Tube Defects (Annual Report)"(PDF). US Centers for Disease Control and Prevention.
"Spina Bifida - Data and Statistics". National Center on Birth Defects and Developmental Disabilities, US Centers for Disease Control and Prevention. 12 October 2016. Retrieved 29 November 2017.
National Center on Birth Defects and Developmental Disabilities. "Folic Acid – Birth Defects Count". US Centers for Disease Control and Prevention. Retrieved 13 May 2014.
Suarez, L.; Brender, J. D.; Langlois, P. H.; Zhan, F. B.; Moody, K. (2007). "Pregnant women taking medication for epilepsy have a higher chance of having a child with a neural tube defect. Maternal exposures to hazardous waste sites and industrial facilities and risk of neural tube defects in offspring". Annals of Epidemiology. 17 (10): 772–77. doi:10.1016/j.annepidem.2007.05.005. PMID17689262.
Meng, Xin; Sun, Yanxin; Duan, Wenhou; Jia, Chongqi (2018). "Meta-analysis of the association of maternal smoking and passive smoking during pregnancy with neural tube defects". International Journal of Gynecology & Obstetrics. 140 (1): 18–25. doi:10.1002/ijgo.12334. ISSN1879-3479. PMID28963797. S2CID20885736.
"Prevention of neural tube defects: results of the Medical Research Council Vitamin Study. MRC Vitamin Study Research Group". Lancet. 338 (8760): 131–37. 1991. doi:10.1016/0140-6736(91)90133-a. PMID1677062. S2CID14225812.
Milunsky A, Alpert E (1984). "Results and benefits of a maternal serum alpha-fetoprotein screening program". JAMA. 252 (11): 1438–42. doi:10.1001/jama.252.11.1438. PMID6206249.
Daly S, Mills JL, Molloy AM, Conley M, Lee YJ, Kirke PN, Weir DG, Scott JM (1997). "Minimum effective dose of folic acid for food fortification to prevent neural-tube defects". Lancet. 350 (9092): 1666–69. doi:10.1016/S0140-6736(97)07247-4. PMID9400511. S2CID39708487.
Milunsky A, Jick H, Jick SS, Bruell CL, MacLaughlin DS, Rothman KJ, Willett W (1989). "Multivitamin/folic acid supplementation in early pregnancy reduces the prevalence of neural tube defects". Journal of the American Medical Association. 262 (20): 2847–52. doi:10.1001/jama.262.20.2847. PMID2478730.
Suarez, L.; Brender, J. D.; Langlois, P. H.; Zhan, F. B.; Moody, K. (2007). "Pregnant women taking medication for epilepsy have a higher chance of having a child with a neural tube defect. Maternal exposures to hazardous waste sites and industrial facilities and risk of neural tube defects in offspring". Annals of Epidemiology. 17 (10): 772–77. doi:10.1016/j.annepidem.2007.05.005. PMID17689262.
Meng, Xin; Sun, Yanxin; Duan, Wenhou; Jia, Chongqi (2018). "Meta-analysis of the association of maternal smoking and passive smoking during pregnancy with neural tube defects". International Journal of Gynecology & Obstetrics. 140 (1): 18–25. doi:10.1002/ijgo.12334. ISSN1879-3479. PMID28963797. S2CID20885736.
"Prevention of neural tube defects: results of the Medical Research Council Vitamin Study. MRC Vitamin Study Research Group". Lancet. 338 (8760): 131–37. 1991. doi:10.1016/0140-6736(91)90133-a. PMID1677062. S2CID14225812.
Milunsky A, Alpert E (1984). "Results and benefits of a maternal serum alpha-fetoprotein screening program". JAMA. 252 (11): 1438–42. doi:10.1001/jama.252.11.1438. PMID6206249.
Daly S, Mills JL, Molloy AM, Conley M, Lee YJ, Kirke PN, Weir DG, Scott JM (1997). "Minimum effective dose of folic acid for food fortification to prevent neural-tube defects". Lancet. 350 (9092): 1666–69. doi:10.1016/S0140-6736(97)07247-4. PMID9400511. S2CID39708487.
Milunsky A, Jick H, Jick SS, Bruell CL, MacLaughlin DS, Rothman KJ, Willett W (1989). "Multivitamin/folic acid supplementation in early pregnancy reduces the prevalence of neural tube defects". Journal of the American Medical Association. 262 (20): 2847–52. doi:10.1001/jama.262.20.2847. PMID2478730.
Wang, M; Wang, ZP; Gong, R; Zhao, ZT (January 2014). "Maternal smoking during pregnancy and neural tube defects in offspring: a meta-analysis". Child's Nervous System. 30 (1): 83–89. doi:10.1007/s00381-013-2194-5. PMID23760473. S2CID40996359.
Meng, Xin; Sun, Yanxin; Duan, Wenhou; Jia, Chongqi (2018). "Meta-analysis of the association of maternal smoking and passive smoking during pregnancy with neural tube defects". International Journal of Gynecology & Obstetrics. 140 (1): 18–25. doi:10.1002/ijgo.12334. ISSN1879-3479. PMID28963797. S2CID20885736.
"Prevention of neural tube defects: results of the Medical Research Council Vitamin Study. MRC Vitamin Study Research Group". Lancet. 338 (8760): 131–37. 1991. doi:10.1016/0140-6736(91)90133-a. PMID1677062. S2CID14225812.
Daly S, Mills JL, Molloy AM, Conley M, Lee YJ, Kirke PN, Weir DG, Scott JM (1997). "Minimum effective dose of folic acid for food fortification to prevent neural-tube defects". Lancet. 350 (9092): 1666–69. doi:10.1016/S0140-6736(97)07247-4. PMID9400511. S2CID39708487.
Meng, Xin; Sun, Yanxin; Duan, Wenhou; Jia, Chongqi (2018). "Meta-analysis of the association of maternal smoking and passive smoking during pregnancy with neural tube defects". International Journal of Gynecology & Obstetrics. 140 (1): 18–25. doi:10.1002/ijgo.12334. ISSN1879-3479. PMID28963797. S2CID20885736.