Williams, J., Mai, C. T., Mulinare, J., Isenburg, J., Flood, T. J., Ethen, M., . . . Kirby, R. S. (2015). Updated Estimates of Neural Tube Defects Prevented by Mandatory Folic Acid Fortification — United States, 1995–2011. MMWR Morb Mortal Wkly Rep.

Williams, Jennifer, Cara T. Mai, Joe Mulinare, Jennifer Isenburg, Timothy J. Flood, Mary Ethen, Barbara Frohnert, und Russell S. Kirby. "Updated Estimates of Neural Tube Defects Prevented By Mandatory Folic Acid Fortification — United States, 1995–2011." MMWR Morb Mortal Wkly Rep 2015.

Williams, Jennifer, et al. "Updated Estimates of Neural Tube Defects Prevented By Mandatory Folic Acid Fortification — United States, 1995–2011." MMWR Morb Mortal Wkly Rep 2015.