Trends of Selected Malformations in Relation to Folic Acid Recommendations and Fortification: An International Assessment

Botto, Lorenzo D; Lisi, Alessandra; Bower, Carol; Canfield, Mark A; Dattani, Nirupa; De Vigan, Catherine; De Walle, Hermien; Erickson, David J; Halliday, Jane; Irgens, Lorentz M; Lowry, R. Brian; McDonnell, Robert; Metneki, Julia; Poetzsch, Simone; Ritvan (2006)