1. by Dervla Kelly, Tom O'Dowd, and Udo Reulbach
Use of folic acid supplements and risk of cleft lip and palate in infants: a population-based cohort study
by Dervla Kelly, Tom O'Dowd, and Udo Reulbach
BJGP
Volume 62(600):e466-e472
July 1, 2012
©2012 by British Journal of General Practice

2. Association between cleft lip and palate and use of folic acid in the first trimester of pregnancy.
Association between cleft lip and palate and use of folic acid in the first trimester of pregnancy. Error bars = 95%.
Dervla Kelly et al. Br J Gen Pract 2012;62:e466-e472
©2012 by British Journal of General Practice