, , , . , , , , , , [1]. 10% 15 45 [2], . [3-6]. , [7]. - , (21-24%), [8-]. , , 40% [11]. , [12], Maternal Nutrition of the National Academy of Sciences 27 [13].
. 60 - , [14]. , , , , , [15,16]. Alward Kevany , , , 40% , [17]. , 10% . - [15]. , , , [18].
[19-21]. . , Health Canada [22]. - , - , , . . , Hospital for sick children. 1 , (PregVit) 1 , (HICA, Materna), . PregVit, , . 1. 8 5 .
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