Shojania A M
Clin Perinatol. 1984 Jun;11(2):433-59.
The fetus, the neonate, and the pregnant woman have a greater requirement for folic acid and vitamin B12 and are more likely to suffer from a deficiency of these vitamins. This article reviews the source, requirement, absorption, and metabolism of these vitamins and discusses the problems attributed to their deficiency in pregnancy and in the neonatal period.
胎儿、新生儿和孕妇对叶酸和维生素B12的需求量更大，且更易缺乏这些维生素。本文综述了这些维生素的来源、需求、吸收及代谢情况，并探讨了孕期和新生儿期因缺乏这些维生素而引发的问题。
