Référence: Effects and safety of periconceptional oral folate supplementation for preventing birth defects
De-Regil, Luz Maria; Peña-Rosas, Juan Pablo; Fernández-Gaxiola, Ana C; Rayco-Solon, Pura Effects and safety of periconceptional oral folate supplementation for preventing birth defects. Cochrane Database of Systematic Reviews 2015: DOI: 10.1002/14651858.CD007950.pub3