1Washington DC. Committee on Measuring Lead in Critical Populations. Measuring laad exposure in infants children and other sensitive population [C]. National Academy Press, 1993. 1-72.
1Zulfiqar A, Tahmeed A, Robert E, et al. What works Interventions for maternal and child undernutrition and survival [ J ]. Lancet, 2008,371 (9610) :417-440.
2Bonnie J, Kaplan, Susan G, et al. Vitamins, minerals, and mood [ J]. Psychological Bulletin,2007,13 (5) :747-760.