De la Vega, A., Salicrup, E., & Verdiales, M. (2013). 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, 21(1). Retrieved from https://prhsj.rcm.upr.edu/index.php/prhsj/article/view/905