Citation
Ricks, Daniel J.,Ricks, Jane H. (2013) Measuring the effects of the Peru's national folic acid fortification program-differing methods, same goal. Rev Panam Salud Publica;34(3) 211-212,sep. 2013. Retrieved from http://www.scielosp.org/scielo.php?script=sci_arttext&pid=S1020-49892013000900011