Neural tube defects in Costa Rica, 1987-2012: origins and development of birth defect surveillance and folic acid fortification

Barboza-Arguello Mde L, Umana-Solis LM, Azofeifa A, Valencia D, Flores AL, Rodriguez-Aguilar S, Alfaro-Calvo T, Mulinare J. Neural tube defects in Costa Rica, 1987-2012: origins and development of birth defect surveillance and folic acid fortification. Matern Child Health J. 2015; 19(3): 583-90.