The authors have corrected Table 2 to note that estimates from the study by Boulet et al. (ref 40) are between two post-fortification periods, not between pre- and post-fortification
Table 2 Description of the studies assessing the impact of flour fortification with folic acid on the prevalence of NTD
![](https://static.cambridge.org/binary/version/id/urn:cambridge.org:id:binary:20160309073545155-0581:S1368980013000451_tab1.gif?pub-status=live)
†Estimates from the study by Boulet et al. are between two post-fortification periods, not between pre- and post-fortification.