DE LA VEGA, Alberto; SALICRUP, Eumarie; VERDIALES, Maribelle. A Nationwide Program for the Use of Preconceptional Folic Acid to Prevent the Development of Open Neural Tube Defects. Who is really using Folic Acid?. Puerto Rico Health Sciences Journal, [S. l.], v. 21, n. 1, 2013. Disponível em: https://prhsj.rcm.upr.edu/index.php/prhsj/article/view/905. Acesso em: 5 nov. 2025.