參考資料：
1.《Alcohol consumption in pregnant women and the outcome of pregnancy》Alcohol Clin Exp Res 1978 Apr;2(2):155-63. doi: 10.1111/j.1530-0277.1978.tb04716.x.
2.《A meta-analysis of risk of pregnancy loss and caffeine and coffee consumption during pregnancy》Int J Gynaecol Obstet 2015 Aug;130(2):116-22. doi: 10.1016/j.ijgo.2015.03.033. Epub 2015 May 14.
3.《Omega-3 Fatty acids and pregnancy》Rev Obstet Gynecol Fall 2010;3(4):163-71.