1Lennartsson J, Bengtsson C. Chorracteristics of anemia - women, the population Study of women ingoteborg 2004 - 2005 [ J ]. Scand J Heamatol, 2005 (22) : 17.
3Zhu JH, Hu DJ, Hao L, et al. Iron, folate, and B (12) different and their associations with anemia among women of childbearing age in a rural area in Northern China [J]. Int J Vintam Nutr Res,2010,80 (2):144-154.
4Tinker SC,Cogswell ME,Hamner HC,et al. Usual folio acid intakes: a morning exercise assessing changes in the amount of folio acid in foods and supplements, National Health and Nutrition Examination Survey,2003-2008 [J].Public Health Nutrition, 2012,15(7):1216-1227.
5El Guindi W, Pronost J, Caries G, et al. Severe maternal anemia and pregnancy outcome [J]. J Gynecol Obst et Biol Reprod(Paris), 2004,33(6Pt 1 ):506-509.
6Abdelrahim II, Adam GK, Mohhed AA, et al. Anaemia, folate and vitamin B12 deficiency among Pregnant women in an area of un- stable malaria transmission in eastern Sudan [S].Trans R SocTrop Med Hyg,2009,103(5):493-496.
7Zhang YQ, Zhu YP, Zhou CY, et al. Clinic analysis in childhood iron deficiency anemia [J]. Chin J Obstet Gynecol Pediatr(Electron Ed),2008,4(2): 102-105.
8Goddard AF,James MW, Mcintyre AS, et al. Guidelines for the management of iron deficiency anaemia[J]. Gut, 2011,60 (10) :1309-1316.
9Shrimpton R, Huffman SL, Zehner ER, et al. Multiple micronu- trient supplementation during pregnancy in developin]g -country settings : policy and program implications of the results of a meta - a- nalysis[J]. Food Nutr Bull, 2009,30 (4 Suppl) : $556 - $573.
10Msuya SE, Hussein TH, Uriyo J,et al. Anaemia among pregnant women in northern Tanzania. prevalence, risk factors and effect On perinatal outcomes[J]. Tanzan J Health Res,2011,13(1) 33 39.
