Folate Deficiency Is Prevalent in Women of Childbearing Age in Belize and Is Negatively Affected by Coexisting Vitamin B-12 Deficiency: Belize National Micronutrient Survey 2011

2011年伯利兹全国微量营养素调查显示，叶酸缺乏症在伯利兹育龄妇女中普遍存在，且与维生素B12缺乏症并存会对其产生负面影响。