GBD 2013 Mortality and Causes of Death, Collaborators. Global, regional, and national age-sex specific all-cause and cause-specific mortality for 240 causes of death, 1990-2013: a systematic analysis for the Global Burden of Disease Study 2013.. Lancet. 2014-12-17. PMID 25530442. doi:10.1016/S0140-6736(14)61682-2.
Stevenson RE, Allen WP, Pai GS, Best R, Seaver LH, Dean J, Thompson S. Decline in prevalence of neural tube defects in a high-risk region of the United States. Pediatrics. 2000, 106 (4): 677–83. PMID 11015508. doi:10.1542/peds.106.4.677.
Haider BA, Bhutta ZA. Multiple-micronutrient supplementation for women during pregnancy. Cochrane Database Syst Rev. 2006, (4): CD004905. PMID 17054223. doi:10.1002/14651858.CD004905.pub2.
Basile LA, Taylor SN, Wagner CL, Quinones L, Hollis BW. Neonatal vitamin D status at birth at latitude 32 degrees 72': evidence of deficiency. J Perinatol. 2007, 27 (9): 568–71. PMID 17625571. doi:10.1038/sj.jp.7211796.
Tarlow MJ; Alpar, H. O.; Brown, M. R. W. Epidemiology of neonatal infections. J Antimicrob Chemother. August 1994, 34 (Suppl A): 43–52. PMID 7844073. doi:10.1093/jac/34.1.43.
The American College of Obstetricians and Gynecologists. What To Expect After Your Due Date. Medem. Medem, Inc. April 2006 [2008-01-16]. (原始内容存档于2003-04-29).
Sedgh, G; Singh, S; Hussain, R. Intended and unintended pregnancies worldwide in 2012 and recent trends.. Studies in family planning. September 2014, 45 (3): 301–14. PMID 25207494.
GBD 2013 Mortality and Causes of Death, Collaborators. Global, regional, and national age-sex specific all-cause and cause-specific mortality for 240 causes of death, 1990-2013: a systematic analysis for the Global Burden of Disease Study 2013.. Lancet. 2014-12-17. PMID 25530442. doi:10.1016/S0140-6736(14)61682-2.
Stevenson RE, Allen WP, Pai GS, Best R, Seaver LH, Dean J, Thompson S. Decline in prevalence of neural tube defects in a high-risk region of the United States. Pediatrics. 2000, 106 (4): 677–83. PMID 11015508. doi:10.1542/peds.106.4.677.
Centers for Disease Control and Prevention (CDC). Use of supplements containing folic acid among women of childbearing age—United States, 2007. MMWR Morb. Mortal. Wkly. Rep. 2008, 57 (1): 5–8. PMID 18185493.
Haider BA, Bhutta ZA. Multiple-micronutrient supplementation for women during pregnancy. Cochrane Database Syst Rev. 2006, (4): CD004905. PMID 17054223. doi:10.1002/14651858.CD004905.pub2.
Theobald HE. Eating for pregnancy and breast-feeding. J Fam Health Care. 2007, 17 (2): 45–9. PMID 17476978.
Basile LA, Taylor SN, Wagner CL, Quinones L, Hollis BW. Neonatal vitamin D status at birth at latitude 32 degrees 72': evidence of deficiency. J Perinatol. 2007, 27 (9): 568–71. PMID 17625571. doi:10.1038/sj.jp.7211796.
Kuoppala T, Tuimala R, Parviainen M, Koskinen T, Ala-Houhala M. Serum levels of vitamin D metabolites, calcium, phosphorus, magnesium and alkaline phosphatase in Finnish women throughout pregnancy and in cord serum at delivery. Hum Nutr Clin Nutr. 1986, 40 (4): 287–93. PMID 3488981.
Tarlow MJ; Alpar, H. O.; Brown, M. R. W. Epidemiology of neonatal infections. J Antimicrob Chemother. August 1994, 34 (Suppl A): 43–52. PMID 7844073. doi:10.1093/jac/34.1.43.
The American College of Obstetricians and Gynecologists. What To Expect After Your Due Date. Medem. Medem, Inc. April 2006 [2008-01-16]. (原始内容存档于2003-04-29).