Use of high doses of folic acid supplements in pregnant women in Spain: an INMA cohort study
Eva María Navarrete-Muñoz, Desirée Valera-Gran, Manoli García de la Hera, Daniel Gimenez-Monzo, Eva Morales, Jordi Julvez, Isolina Riaño, Adonina Tardón, Jesus Ibarluzea, Loreto Santa-Marina, Mario Murcia, Marisa Rebagliato, Jesus Vioque
BMJ Open Nov 2015, 5 (11) e009202; DOI: 10.1136/bmjopen-2015-009202