Effect of multiple micronutrient supplementation on pregnancy and infant outcomes: a systematic review.
Ramakrishnan U, Grant FK, Goldenberg T, Bui V, Imdad A, Bhutta ZA. Effect of multiple micronutrient supplementation on pregnancy and infant outcomes: a systematic review. Paediatr Perinat Epidemiol. 2012 Jul; 26 Suppl 1:153-67.