%0 Journal Article %A Rogne, Tormod %A Tielemans, Myrte J %A Chong, Mary Foong-Fong %A Yajnik, Chittaranjan S %A Krishnaveni, Ghattu V %A Poston, Lucilla %A Jaddoe, Vincent W V %A Steegers, Eric A P %A Joshi, Suyog %A Chong, Yap-Seng %A Godfrey, Keith M %A Yap, Fabian %A Yahyaoui, Raquel %A Thomas, Tinku %A Hay, Gry %A Hogeveen, Marije %A Demir, Ahmet %A Saravanan, Ponnusamy %A Skovlund, Eva %A Martinussen, Marit P %A Jacobsen, Geir W %A Franco, Oscar H %A Bracken, Michael B %A Risnes, Kari R %T Associations of Maternal Vitamin B12 Concentration in Pregnancy With the Risks of Preterm Birth and Low Birth Weight: A Systematic Review and Meta-Analysis of Individual Participant Data. %D 2017 %U https://hdl.handle.net/10668/25501 %X Vitamin B12 (hereafter referred to as B12) deficiency in pregnancy is prevalent and has been associated with both lower birth weight (birth weight %K low birth weight %K pregnancy %K preterm birth %K systematic review %K vitamin B12 %~