title: Effects and safety of periconceptional folate supplementation for preventing birth defects.
authors.affiliation: Micronutrients Unit, Department of Nutrition for Health and Development, World Health Organization, 20 Avenue Appia, Geneva, Geneva, Switzerland, 1211.
authors.forename: Luz Maria
authors.initials: LM
authors.lastname: De-Regil
authors.forename: Ana C
authors.initials: AC
authors.lastname: Fernández-Gaxiola
authors.forename: Therese
authors.initials: T
authors.lastname: Dowswell
authors.forename: Juan Pablo
authors.initials: JP
authors.lastname: Peña-Rosas