Référence: Effects and
safety of periconceptional oral folate supplementation for preventing birth
defects. Cochrane Database
De-Regil LM, Peña-Rosas JP, Fernández-Gaxiola AC, Rayco-Solon P. Effects and
safety of periconceptional oral folate supplementation for preventing birth
defects. Cochrane Database Syst Rev. 2015 Dec 14;(12):CD007950.